5310-00-531-5986 WASHER,FLAT Index 5310-00-531-5990 WASHER,FLAT

National Stock Number:
5330-00-531-5988

Federal Supply Class:
5330

National Item Identification Number:
005315988

Description:
PACKING,PREFORMED

Detail:
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see WASHER (as modified) and GASKET. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; and SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. For circular (with aperature) nonmetallic items with a solid round cross-section see O-RING. Excludes CUP, COMPRESSION; GASKET; WASHER (as modified); and FELT, MECHANICAL, PREFORMED.


Manufacturer Information:
1031-3000D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
AN6226-3088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
PKG5393234WORTHINGTON COMPRESSORS INC AIR POWER AND CONSTRUCTION EQUIP DIV
X1-2200-1435045REVAPC1880064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER1.885 INCHES MINIMUM AND 1.895 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEU
CROSS-SECTIONAL HEIGHT0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER2.480 INCHES MINIMUM AND 2.490 INCHES MAXIMUM
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT


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