5330-00-146-2688 PACKING,PREFORMED Index 5340-00-146-2696 PAD

National Stock Number:
5330-00-146-2691

Federal Supply Class:
5330

National Item Identification Number:
001462691

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:
514902-1880020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2
6944SSH1L775165JOHNS MANVILLE INTL
9323489762REULAND ELECTRIC CO


Techincal Specification:
CENTER HOLE DIAMETER2.123 INCHES MINIMUM AND 2.127 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEU
CROSS-SECTIONAL HEIGHT0.312 INCHES MINIMUM AND 0.343 INCHES MAXIMUM
HARDNESS RATING88.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER2.498 INCHES MINIMUM AND 2.502 INCHES MAXIMUM
TEMP RATING-20.0 FAHRENHEIT AND 250.0 FAHRENHEIT


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