301 GB/T 3103.2-1982 紧固件公差 用于精密机械的螺栓、螺钉和螺母 Tolerances for fasteners--Bolts, screws and nuts for fine mechanics
302 GB/T 3103.3-1982 紧固件公差 平垫圈 Tolerances for fasteners--Washers
303 GB/T 3103.4-1992 紧固件公差 耐热用螺纹连接副 Tolerances for fasteners--Components for bolted connections made mainly from materials with a high temperature strength
304 GB/T 3104-1982 紧固件 六角产品的对边宽度 Fasteners--Widths across flats of hexagon products
305 GB/T 3105-1982 螺栓和螺钉的头下圆角半径 Radii under the head of bolts and screws
306 GB/T 3106-1982 螺栓、螺钉和螺柱的公称长度和普通螺栓的螺纹长度 Bolts, screws and studs--Nominal lengths, and thread lengths for general purpose bolts
307 GB/T 3162-1991 滑动轴承薄壁轴瓦尺寸、结构要素与公差 Plain bearings—Thin-walled bearing shells—Dimensions, structure elements and tolerances
308 GB/T 3287-1982 可锻铸铁管路连接件技术条件 Technical requirements of malleable cast iron pipe fittings
309 GB/T 3288-1982 可锻铸铁管路连接件验收规则 Delivery requirements of malleable cast iron pipe fittings
310 GB/T 3289.1-1982 可锻铸铁管路连接件型式尺寸 管件结构尺寸表 Malleable cast iron pipe fittings--Type size--Dimensions list of pipe fittings structure
311 GB/T 3289.2-1982 可锻铸铁管路连接件型式尺寸 弯头 内外丝弯头 Malleable cast iron pipe fittings--Type size--Elbows male and female elbows
312 GB/T 3289.3-1982 可锻铸铁管路连接件型式尺寸 45°弯头 45°内外丝弯头 Malleable cast iron pipe fittings--Type size--Elbows 45°, male and female elbows 45°
313 GB/T 3289.4-1982 可锻铸铁管路连接件型式尺寸 异径弯头 Malleable cast iron pipe fittings--Type size--Reducing elbows
314 GB/T 3289.5-1982 可锻铸铁管路连接件型式尺寸 异径内外丝弯头 Malleable cast iron pipe fittings--Type size--Male and female reducing elbows
315 GB/T 3289.6-1982 可锻铸铁管路连接件型式尺寸 侧孔弯头 Malleable cast iron pipe fittings--Type size--Side outlet elbows
316 GB/T 3289.7-1982 可锻铸铁管路连接件型式尺寸 月弯 内外丝月弯 外丝月弯 Malleable cast iron pipe fittings--Type size--Return bends, male and female return bends, thread return bends
317 GB/T 3289.8-1982 可锻铸铁管路连接件型式尺寸 45°月弯45°内外丝月弯45°外丝月弯 Malleable cast iron pipe fittings--Type size--Long sweep bends 45°，male and female long sweep bends 45°,male long sweep bends 45°
318 GB/T 3289.9-1982 可锻铸铁管路连接件型式尺寸 U型弯头 Malleable cast iron pipe fittings--Type size--U-Elbows(return bends)
319 GB/T 3289.10-1982 可锻铸铁管路连接件型式尺寸 三通 内外丝三通 Malleable cast iron pipe fittings--Type size--Tees, male and female tees
320 GB/T 3289.11-1982 可锻铸铁管路连接件型式尺寸 异径内外丝三通 Malleable cast iron pipe fittings--Type size--Male and female reducing tees
321 GB/T 3289.12-1982 可锻铸铁管路连接件型式尺寸 中大异径三通 Malleable cast iron pipe fittings--Type size--Medium-large reducing tees [tees(increasing on the branch)]
322 GB/T 3289.13-1982 可锻铸铁管路连接件型式尺寸 侧大异径三通 Malleable cast iron pipe fittings--Type size--Lateral-large reducing tees
323 GB/T 3289.14-1982 可锻铸铁管路连接件型式尺寸 中小异径三通 Malleable cast iron pipe fittings--Type size--Medium-less reducing tees
324 GB/T 3289.15-1982 可锻铸铁管路连接件型式尺寸 侧小异径三通 Malleable cast iron pipe fittings--Type size--Lateral-less reducing tees
325 GB/T 3289.16-1982 可锻铸铁管路连接件型式尺寸 中小偏心异径三通 Malleable cast iron pipe fittings--Type size--Medium-less eccentric reducing tees
326 GB/T 3289.17-1982 可锻铸铁管路连接件型式尺寸 45°三通 Y型三通 Malleable cast iron pipe fittings--Type size--Tees45°, Y pieces(tees)
327 GB/T 3289.18-1982 可锻铸铁管路连接件型式尺寸 Y型异径三通 Malleable cast iron pipe fittings--Type size--Y Piece reducing(tees)
328 GB/T 3289.19-1982 可锻铸铁管路连接件型式尺寸 侧孔三通 Malleable cast iron pipe fittings--Type size--Side outlet tees
329 GB/T 3289.20-1982 可锻铸铁管路连接件型式尺寸 四通 Malleable cast iron pipe fittings--Type size--Crosses
330 GB/T 3289.21-1982 可锻铸铁管路连接件型式尺寸 异径四通 Malleable cast iron pipe fittings--Type size--Reducing crosses
331 GB/T 3289.22-1982 可锻铸铁管路连接件型式尺寸 外接头 内外丝接头 Malleable cast iron pipe fittings--Type size--Male joints(sockets), male and female joints (sockets)
332 GB/T 3289.23-1982 可锻铸铁管路连接件型式尺寸 无方内接头 Malleable cast iron pipe fittings--Type size--No-square inner joint (nipples)
333 GB/T 3289.24-1982 可锻铸铁管路连接件型式尺寸 异径外接头 Malleable cast iron pipe fittings--Type size--Reducing male joints (sockets)
334 GB/T 3289.25-1982 可锻铸铁管路连接件型式尺寸 偏心异径外接头 Malleable cast iron pipe fittings--Type size--Eccentric reducing male joints (sockets)
335 GB/T 3289.26-1982 可锻铸铁管路连接件型式尺寸 内接头 Malleable cast iron pipe fittings--Type size--Inner joints (nipples hexagon)
336 GB/T 3289.27-1982 可锻铸铁管路连接件型式尺寸 异径内接头 Malleable cast iron pipe fittings--Type size--Reducing inner joints(nipples hexagon)
337 GB/T 3289.28-1982 可锻铸铁管路连接件型式尺寸 内外螺丝 Malleable cast iron pipe fittings--Type size--Male and female screws (bushings)
338 GB/T 3289.29-1982 可锻铸铁管路连接件型式尺寸 通丝外接头 Malleable cast iron pipe fittings--Type size--Through thread male joint (sockets)
339 GB/T 3289.30-1982 可锻铸铁管路连接件型式尺寸 锁紧螺母 Malleable cast iron pipe fittings--Type size--Backnuts
340 GB/T 3289.31-1982 可锻铸铁管路连接件型式尺寸 外方管堵 Malleable cast iron pipe fittings--Type size--Outer-square plugs

341 GB/T 3289.32-1982 可锻铸铁管路连接件型式尺寸 带边外方管堵 Malleable cast iron pipe fittings--Type size--Outer-square beaded plugs
342 GB/T 3289.33-1982 可锻铸铁管路连接件型式尺寸 内方管堵 Malleable cast iron pipe fittings--Type size--Inner-square plugs
343 GB/T 3289.34-1982 可锻铸铁管路连接件型式尺寸 管帽 Malleable cast iron pipe fittings--Type size--Tube caps (caps plugs)
344 GB/T 3289.35-1982 可锻铸铁管路连接件型式尺寸 活接弯头 内外丝活接弯头 Malleable cast iron pipe fittings--Type size--Union elbows, male and female union elbows
345 GB/T 3289.36-1982 可锻铸铁管路连接件型式尺寸 活接三通 Malleable cast iron pipe fittings--Type size--Union tees
346 GB/T 3289.37-1982 可锻铸铁管路连接件型式尺寸 平形活接头 Malleable cast iron pipe fittings--Type size--Parallel unions
347 GB/T 3289.38-1982 可锻铸铁管路连接件型式尺寸 锥形活接头 Malleable cast iron pipe fittings--Type size--Taper unions
348 GB/T 3289.39-1982 可锻铸铁管路连接件型式尺寸 平形活接头垫圈 Malleable cast iron pipe fittings--Type size--Parallel union gaskets
349 GB/T 3374-1992 齿轮基本术语 Basic terminology of gears
350 GB/T 3478.1-1995 圆柱直齿渐开线花键模数 基本齿廓 公差 Straight cylindrical involute splines--Modules, basic rack profiles and tolerances

351 GB/T 3478.2-1995 圆柱直齿渐开线花键 30°压力角 尺寸表 Straight cylindrical involute splines--30°pressure angle dimenslons tables
352 GB/T 3478.3-1995 圆柱直齿渐开线花键 37.5°压力角 尺寸表 Straight cylindrical involute splines--37.5°pressure angle dimensions tables
353 GB/T 3478.4-1995 圆柱直齿渐开线花键 45°压力角 尺寸表 Straight cylindrical involute splines--45°pressure angle dimensions tables
354 GB/T 3478.5-1995 圆柱直齿渐开线花键 检验方法 Straight cylindrical involute splines--Inspection methods
355 GB/T 3478.6-1995 圆柱直齿渐开线花键 30°压力角 M值和W值 Straight cylindrical involute splines--30°pressurengle M and W values
356 GB/T 3478.7-1995 圆柱直齿渐开线花键 37.5°压力角 M值和W值 Straight cylindrical involute splines--37.5°pressure angle M and W values
357 GB/T 3478.8-1995 圆柱直齿渐开线花键 45°压力角 M值和W值 Straight cylindrical involute splines--45°pressure angle-M and W values
358 GB/T 3478.9-1995 圆柱直齿渐开线花键 量棒 Straight cylindrical involute splines--Measuring pin
359 GB/T 3507-1983 机械式联轴器公称扭矩系列 Nominal torque series of the mechanical coupling
360 GB/T 3632-1995 钢结构用扭剪型高强度螺栓连接副 Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures
361 GB/T 3633-1995 钢结构用扭剪型高强度螺栓连接副 技术条件 Technical requirement for sets of torshear type high strength bolt hexagon nut and plain washer for steel structures
362 GB/T 3733.1-1983 卡套式端直通管接头 Straight thread connector--Assembly
363 GB/T 3733.2-1983 卡套式端直通接头体 Straight thread connector--Body
364 GB/T 3734.1-1983 卡套式锥螺纹直通管接头 Male connector--Assembly
365 GB/T 3734.2-1983 卡套式锥螺纹直通接头体 Male connector--Body
366 GB/T 3735.1-1983 卡套式端直通长管接头 Straight thread long connector--Assembly
367 GB/T 3735.2-1983 卡套式端直通长接头体 Straight thread long connector--Body
368 GB/T 3736.1-1983 卡套式锥螺纹长管接头 Male long connector--Assembly
369 GB/T 3736.2-1983 卡套式锥螺纹长接头体 Male long connector--Body
370 GB/T 3737.1-1983 卡套式直通管接头 Union--Assembly
371 GB/T 3737.2-1983 卡套式直通接头体 Union--Body
372 GB/T 3738.1-1983 卡套式端直角管接头 Straight thread elbow--Assembly
373 GB/T 3738.2-1983 卡套式端直角接头体 Straight thread elbow--Body
374 GB/T 3739.1-1983 卡套式锥螺纹直角管接头 Male elbow--Assembly
375 GB/T 3739.2-1983 卡套式锥螺纹直角接头体 Male elbow--Body
376 GB/T 3740.1-1983 卡套式直角管接头 Union elbow--Assembly
377 GB/T 3740.2-1983 卡套式直角接头体 Union elbow--Body
378 GB/T 3741.1-1983 卡套式端三通管接头 Straight thread branch tee--Assembly
379 GB/T 3741.2-1983 卡套式端三通接头体 Straight thread branch tee--Body
380 GB/T 3742.1-1983 卡套式锥螺纹三通管接头 Male branch tee-Assembly

381 GB/T 3742.2-1983 卡套式锥螺纹三通接头体 Male branch tee--body
382 GB/T 3743.1-1983 卡套式端直角三通管接头 Straight thread run tee--Assembly
383 GB/T 3743.2-1983 卡套式端直角三通接头体 Straight thread run tee--Body
384 GB/T 3744.1-1983 卡套式锥螺纹直角三通管接头 Male run tee--Assembly
385 GB/T 3744.2-1983 卡套式锥螺纹直角三通接头体 Male run tee--Body
386 GB/T 3745.1-1983 卡套式三通管接头 Union tee--Assembly
387 GB/T 3745.2-1983 卡套式三通接头体 Union tee--Body
388 GB/T 3746.1-1983 卡套式四通管接头 Union cross-Assembly
389 GB/T 3746.2-1983 卡套式四通接头体 Union cross--Body
390 GB/T 3747.1-1983 卡套式焊接管接头 Weld male connector-Assembly
391 GB/T 3747.2-1983 卡套式焊接接头体 Weld male connector--Body
392 GB/T 3748.1-1983 卡套式隔壁直通管接头 Bulkhead union--Assmbly
393 GB/T 3748.2-1983 卡套式隔壁直通接头体 Bulkhead union--Body
394 GB/T 3749.1-1983 卡套式隔壁直角管接头 Bulkhead union elbow--Assembly
395 GB/T 3749.2-1983 卡套式隔壁直角接头体 Bulkhead union elbow--Body
396 GB/T 3750.1-1983 卡套式铰接管接头 Angle swivel screw--Assembly
397 GB/T 3750.2-1983 卡套式铰接接头体 Angle swivel screw--Body
398 GB/T 3750.3-1983 卡套式铰接六角螺栓 Hollow screws
399 GB/T 3751.1-1983 卡套式压力表管接头 Connector for pressure gauge--Assembly
400 GB/T 3751.2-1983 卡套式压力表接头体 Connector for pressure gauge-Boby

~
401 GB/T 3752.1-1983 卡套式组合直角管接头 Adjustable elbow--Assembly
402 GB/T 3752.2-1983 卡套式组合直角接头体 Adjustable elbow--Body
403 GB/T 3753.1-1983 卡套式组合三通管接头 Adjustable T-unions--Assembly
404 GB/T 3753.2-1983 卡套式组合三通接头体 Adjustable T-unions--Body
405 GB/T 3754.1-1983 卡套式端对接直通管接头 Straight thread connector for butt joints--Assembly
406 GB/T 3754.2-1983 卡套式端对接直通接头体 Straight thread connector for butt joints--Body
407 GB/T 3755.1-1983 卡套式锥螺纹对接直通管接头 Male connector for butt joints--Assembly
408 GB/T 3755.2-1983 卡套式锥螺纹对接直通接头体 Male connector for butt joints--Body
409 GB/T 3756.1-1983 卡套式对接直通管接头 Union for butt joints--Assembly
410 GB/T 3756.2-1983 卡套式对接直通接头体 Union for butt joints--Body
411 GB/T 3757.1-1983 卡套式端对接直角管接头 Straight thread elbow for butt joints--Assembly
412 GB/T 3757.2-1983 卡套式端对接直角接头体 Straight thread elbow for butt joints--Body
413 GB/T 3758.1-1983 卡套式锥螺纹对接直角管接头 Male elbow for butt joints--Assembly
414 GB/T 3758.2-1983 卡套式锥螺纹对接直角接头体 Male elbow for butt joints--Body
415 GB/T 3759-1983 卡套式管接头用螺母 Bite type tube fittings--Nuts
416 GB/T 3760-1983 卡套式管接头用对接螺母 Bite type tube fittings--Nuts for butt joints
417 GB/T 3761-1983 卡套式管接头用锥体环 Bite type tube fittings--Pressure bush for butt joints
418 GB/T 3762-1983 卡套式管接头用尖角密封垫圈 Bite type tube fittings--Tipping washer
419 GB/T 3763-1983 卡套式管接头用六角薄螺母 Bite type tube fittings--Hexagon thin nuts
420 GB/T 3764-1983 卡套 Ferrule
421 GB/T 3765-1983 卡套式管接头技术条件 Specification for bite type tube fittings
422 GB/T 3832.1-1983 拉刀矩形柄 型式和基本尺寸 Rectangular shanks for broaches--Types and main dimensions 423 GB/T 3832.2-1983 拉刀圆柱形前柄型式和基本尺寸 Round shanks for broaches--Types and main dimensions
424 GB/T 3832.3-1983 拉刀圆柱形后柄型式和基本尺寸 Round follower end for broaches--Types and main dimensions
425 GB/T 3858-1993 液力传动术语 Hydrodynamic drive terminology
426 GB/T 3882-1995 滚动轴承 外球面球轴承和偏心套外形尺寸 Rolling bearings--Insert bearings and eccentric looking collars --Boundary dimensions
427 GB/T 3944-1983 关节轴承 词汇 Spherical plain bearing,joint type--Vocabulary
428 GB/T 4140-1993 输送用平顶链和链轮 Flat-top chains and associated chainwheels for conveyors
429 GB/T 4199-1984 滚动轴承公差定义 Rolling bearings--Tolerances-definitions
430 GB/T 4222-1991 杆端关节轴承 外形尺寸和公差 Spherical plain bearing rod ends—Boundary dimensions and tolerances
431 GB/T 4323-1984 弹性套柱销联轴器 Pin coupling with elastic sleeve
432 GB/T 4603-1984 滚针轴承 重系列 尺寸和公差 Needle roller bearings--Heavy series--Dimensions and tolerances
433 GB/T 4604-1993 滚动轴承 径向游隙 Rolling bearings--Radial internal clearance
434 GB/T 4646-1991 GEC...FSA 型自润滑向心关节轴承外形尺寸 GEC...FSA type maintenance-free spherical plain radia lbearings, joint type—Boundary dimensions
435 GB/T 4648-1996 滚动轴承 圆锥滚子轴承 凸缘外圈 外形尺寸 Rolling bearings--Metric tapered roller bearings--Flanged cups--Boundary dimensions
436 GB/T 4661-1989 滚动轴承 圆柱滚子 Rolling bearings-cylindrical rollers
437 GB/T 4662-1993 滚动轴承 额定静负荷 Rolling bearings--Static load ratings
438 GB/T 4663-1994 滚动轴承 推力圆柱滚子轴承 外形尺寸 Rolling bearings--Cylindrical thrust roller bearings--Boundary dimensions
439 GB/T 4982-1985 夹紧型真空快卸法兰 Vacuum technology clamped type quick release flange
440 GB/T 5014-1985 弹性柱销联轴器 Elastic pin coupling

441 GB/T 5015-1985 弹性柱销齿式联轴器 Gear coupling with elastic pin
442 GB/T 5267-1985 螺纹紧固件电镀层 Electroplated coatings on threaded fasteners
443 GB/T 5269-1985 传动及输送用双节距精密滚子链和链轮 Double pitch precision roller chains and chain wheels for transmission and conveyors
444 GB/T 5272-1985 梅花形弹性联轴器 Coupling with elastic spider
445 GB/T 5276-1985 紧固件 螺栓、螺钉、螺柱及螺母尺寸代号和标注 Fasteners--Bolts,screws,studs and nuts--Symbols and designations of dimensions
446 GB/T 5277-1985 紧固件 螺栓和螺钉通孔 Fasteners--Clearance holes for bolts and screws
447 GB/T 5278-1985 紧固件 开口销孔和金属丝孔 Fasteners--Split pin holes and wireholes
448 GB/T 5279-1985 沉头螺钉 头部形状和测量 Countersunk head screws--Head configuration and gauging
449 GB/T 5280-1985 自攻螺钉用螺纹 Tapping screws thread
450 GB/T 5281-1985 内六角圆柱头轴肩螺钉 Hexagon socket head shoulder screws