5310-00-489-3840 WASHER,RECESSED Index 5310-00-489-3843 WASHER,FLAT

National Stock Number:
5330-00-489-3842

Federal Supply Class:
5330

National Item Identification Number:
004893842

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:
40B29B12-02401317FYR-FYTER CO INC
40B629B12-02480049DEPARTMENT OF THE AIR FORCE


Techincal Specification:
CENTER HOLE DIAMETER0.750 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.292 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLEV
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
PERIPHERAL DIAMETER1.500 INCHES NOMINAL
RIM SURFACE WIDTH0.156 INCHES NOMINAL


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