4920-00-476-7179 COVER,TEST STAND Index 5330-00-476-7183 PACKING,PREFORMED

National Stock Number:
5330-00-476-7180

Federal Supply Class:
5330

National Item Identification Number:
004767180

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:
4177-295F573GREENE TWEED & CO INC
4177-2972902PALMETTO INC
4177-29-3015F573GREENE TWEED & CO INC
4177-29-3305F573GREENE TWEED & CO INC


Techincal Specification:
CENTER HOLE DIAMETER3.030 INCHES MINIMUM AND 3.070 INCHES MAXIMUM
MATERIALPLASTIC POLYURETHANE OVERALL
PERIPHERAL DIAMETER3.362 INCHES MINIMUM AND 3.382 INCHES MAXIMUM


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