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