Washer, Countersunk and Plain, for Use with Bolts and Nuts Up To and Including 260 Ksi Ftu
埋头平垫圈 用于260 Ksi Ftu及以下的螺栓和螺母

2014-06-30

WASHER, COUNTERSUNK AND PLAIN, FOR USE WITH BOLTS AND NUTS UP TO AND INCLUDING 220 KSI FTU (SUPERSEDING MS21206)
埋头平垫圈 用于220 KSI FTU及以下的螺栓和螺母（替代MS21206）

1991-08-30

Washer, Countersunk and Plain, for Use with Bolts and Nuts Up to and Including 220 Ksi Ftu (10 day letters)
埋头平垫圈 用于220 Ksi Ftu及以下的螺栓和螺母（10天字母）

2010-06-30

WASHER, COUNTERSUNK AND PLAIN, FOR USE WITH BOLTS AND NUTS UP TO AND INCLUDING 260 KSI FTU (SUPERSEDING MS21299) (S/S BY NASM21299-1999)
埋头平垫圈 用于260 KSI FTU及以下的螺栓和螺母（代替MS21299）

1999-04-19

WASHER, COUNTERSUNK AND PLAIN, FOR USE WITH BOLTS AND NUTS UP TO AND INCLUDING 260 KSI FTU (SUPERSEDING MS21299) (S/S BY NASM21299-1999)
埋头平头垫圈 用于260 KSI FTU及以下的螺栓和螺母（取代MS21299）（由NASM21299-1999提供）

1994-09-30

Washer, Recessed Countersunk Two Surfaces, for Use with Wheel Bolts and Nuts Up to and Including 180 Ksi Ftu
垫圈 凹入沉头两面 用于180 Ksi Ftu及以下车轮螺栓和螺母

2014-11-21

WASHER, RECESSED COUNTERSUNK TWO SURFACES, FOR USE WITH WHEEL BOLTS AND NUTS UP TO AND INCLUDING 180 KSI FTU (S/S BY NASM14155-1999)
两个表面凹进沉头垫圈 用于180 KSI FTU及以下的车轮螺栓和螺母

1999-09-09

WASHER, RECESSED COUNTERSUNK TWO SURFACES, FOR USE WITH WHEEL BOLTS AND NUTS UP TO AND INCLUDING 180 KSI FTU (S/S BY NASM14155-1999)
用于180 KSI FTU以下（含180 KSI FTU）车轮螺栓和螺母的两个表面凹入沉头垫圈（由NASM1415-1999提供）

1974-09-13

WASHER, RECESSED, COUNTERSUNK TWO SURFACES, FOR USE WITH WHEEL BOLTS AND NUTS UP TO AND INCLUDING 220 KSI FTU (SUPERSEDING MS14177A) (S/S BY NASM14177-1999)
凹进沉头两表面垫圈 用于220 KSI FTU及以下的车轮螺栓和螺母（代替MS14177A）

2000-02-07

WASHER, RECESSED, COUNTERSUNK TWO SURFACES, FOR USE WITH WHEEL BOLTS AND NUTS UP TO AND INCLUDING 220 KSI FTU (SUPERSEDING MS14177A) (S/S BY NASM14177-1999)
用于220 KSI FTU（代替MS14177A）及以下车轮螺栓和螺母的两个埋头凹形垫圈（由NASM14177-1999提供）

1991-09-20