National Item Identification Number
01-306-7881
National Stock Number
Item Name
WASHER,SHOULDERED AND RECESSED
Federal Supply Class
5310
Description
A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use BEARING, SLEEVE; BUSHING, SLEEVE; or SPACER, SLEEVE. Excludes INSULATOR, WASHER and thrust type washers.
Commercial and Government Entity Code (Supplier Data)
11214
HARDIGG INDUSTRIES INC
DIV HARDIGG CASES
147 N MAIN ST
SOUTH DEERFIELD
MA
01373
413-665-2163
Reference Numbers (Part Numbers)
P21-236-2
Required Categories
MATERIAL
SURFACE TREATMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
STYL
Required Description
STEEL COMP 1020 OVERALL
ZINC OVERALL
QQ-Z-325,CL 2,TY 2 FED SPEC SINGLE TREATM
