National Item Identification Number
01-353-5124
National Stock Number
Item Name
WASHER,RECESSED
Federal Supply Class
5310
Description
A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes WASHER, CONCAVE, RETAINER, PACKING, and thrust type washers. See also SPACER, SLEEVE; and SPACER, STEPPED.
Commercial and Government Entity Code (Supplier Data)
02602
PRATT & WHITNEY ROCKETDYNE INC
6633 CANOGA AVENE
CANOGA PARK
CA
91309
818-586-8145
Reference Numbers (Part Numbers)
3180971-7
3180971-7
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
STYLE DESIGNATOR
HOLE DIAMETER;
Required Description
NICKEL ALLOY K-500 OVERALL
QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE O