51 gb/t 90-1985 紧固件验收检查、标志与包装 acceptance inspection,marking and packaging of fasteners

　　52 gb/t 91-1986 开口销 split pins

　　53 gb/t 93-1987 标准型弹簧垫圈 single coil spring lock washers——normal type

　　54 gb/t 94.1-1987 弹性垫圈技术条件 弹簧垫圈 specifications for spring washers——single coil spring lock washers

　　55 gb/t 94.2-1987 弹性垫圈技术条件 齿形、锯齿锁紧垫圈 specifications for spring washers——toothed lock and serrated lock washers

　　56 gb/t 94.3-1987 弹性垫圈技术条件 鞍形、波形弹性垫圈 specifications for spring washers——curved and wave spring washers

　　57 gb/t 95-1985 平垫圈-c级 plain washers——product grade c

　　58 gb/t 272-1993 滚动轴承 代号方法 rolling bearing——identification code

　　59 gb/t 273.1-1987 滚动轴承 圆锥滚子轴承 外形尺寸方案 rolling bearings tapered roller bearings——boundary dimensions

　　60 gb/t 273.3-1988 滚动轴承 向心轴承 外形尺寸方案 rolling bearings radial bearings-boundary dimensions

　　61 gb/t 274-1991 滚动轴承 装配倒角极限 rolling bearing chamfer dimension limits

62 gb/t 275-1993 滚动轴承与轴和外壳的配合 shaft and housing fits for rolling bearings

　　63 gb/t 276-1994 滚动轴承 深沟球轴承 外形尺寸 rolling bearings——deep groove ball bearings——boundary dimensions

　　64 gb/t 280-1964 带毡封圈的单列向心球轴承 结构型式和基本尺寸 rolling bearings——single-row radial ball bearings withfelt seals——types and basic dimensions

　　65 gb/t 281-1994 滚动轴承 调心球轴承 外形尺寸 rolling bearings——self-aligning ball bearings——boundary dimensions

　　66 gb/t 283-1994 滚动轴承 圆柱滚子轴承 外形尺寸 rolling bearings——cylindrical roller bearings-boundary dimensions

　　67 gb/t 285-1994 滚动轴承 双列圆柱滚子轴承 外形尺寸 rolling bearings——double row cylindrical roller bearings-boundary dimensions

　　68 gb/t 286-1964 双列向心球面滚子轴承 结构型式和基本尺寸 rolling bearings——double -row radial spherical roller bearings——types and basic dimensions

　　69 gb/t 288-1994 滚动轴承 调心滚子轴承 外形尺寸 rolling bearings——self-aligning roller bearings-boundary dimensions

　　70 gb/t 289-1964 滚针轴承 结构型式和基本尺寸 needle roller bearings——types and basic dimensions

　　71 gb/t 291-1964 螺旋滚子轴承 结构型式和基本尺寸 rolling bearings with helically wound cylindrical rollers——types and basic dimensions

　72 gb/t 292-1994 滚动轴承 角接触球轴承 外形尺寸 rolling bearings——angular contact ball bearings——boundary dimensions

　　73 gb/t 294-1994 滚动轴承 三点和四点接触球轴承 外形尺寸 rolling bearings——three point and four point contact ball bearings——boundary dimensions

　　74 gb/t 296-1994 滚动轴承 双列角接触球轴承 外形尺寸 rolling bearings——double row angular contact ball bearings——boundary dimensions

　　75 gb/t 297-1994 滚动轴承 圆锥滚子轴承 外形尺寸 rolling bearings——tapered roller bearings——boundary dimensions

　　76 gb/t 299-1995 滚动轴承 双列圆锥滚子轴承 外形尺寸 rolling bearings——metric double row tapered roller bearings——boundary dimensions

　　77 gb/t 300-1995 滚动轴承 四列圆锥滚子轴承外形尺寸 rolling bearings——four row tapered roller bearings——boundary dimensions

　　78 gb/t 301-1995 滚动轴承 推力球轴承 外形尺寸 rolling bearings——thrust ball bearings——boundary dimensions

　　79 gb/t 304.1-1988 关节轴承 分类 spherical plain bearings classification

　　80 gb/t 304.2-1988 关节轴承 代号方法 spherical plain bearings identification code

　　81 gb/t 304.3-1990 关节轴承 配合 spherical plain bearings-fits

　　82 gb/t 304.9-1981 向心关节轴承 技术条件 spherical plain radial bearings, joint type——technical requirements

83 gb/t 304.10-1989 关节轴承公差 spherical plain bearings-tolerances

　　84 gb/t 307.1-1994 滚动轴承 向心轴承 公差 rolling bearings——radial bearings——tolerances

　　85 gb/t 307.2-1995 滚动轴承 测量和检验的原则及方法 rolling bearings——measuring and gauging principles and methods

　　86 gb/t 307.3-1996 滚动轴承 通用技术规则 rolling bearings——general technical regulations

　　87 gb/t 307.4-1994 滚动轴承 推力球轴承 公差 rolling bearings——thrust ball bearings——tolerances

　　88 gb/t 308-1989 滚动轴承 钢球 rolling bearings-steel balls

　　89 gb/t 309-1984 滚动轴承 滚针 rolling bearings——needle rollers

　　90 gb/t 794-1993 加强半圆头方颈螺栓 strengthened cap head square neck bolts

　　91 gb/t 798-1988 活节螺栓 eye bolts

　　92 gb/t 799-1988 地脚螺栓 eyelet bolts

　　93 gb/t 800-1988 沉头双榫螺栓 flat countersunk double nib bolts

　　94 gb/t 802-1988 组合式盖形螺母 acorn nuts

　　95 gb/t 804-1988 球面六角螺母 hexagon nuts with raised face

　　96 gb/t 805-1988 扣紧螺母 tight nuts

　　97 gb/t 806-1988 滚花高螺母 knurled nut with collar

　　98 gb/t 807-1988 滚花薄螺母 knurled nuts

　　99 gb/t 808-1988 小六角特扁细牙螺母 small hexagon thin nuts-fine pitch thread

　　100 gb/t 809-1988 嵌装圆螺母 insert round nuts