5330-00-290-0525 PACKING,PREFORMED Index 5330-00-290-0527 PACKING,PREFORMED

National Stock Number:
5330-00-290-0526

Federal Supply Class:
5330

National Item Identification Number:
002900526

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:
C742595-4621921RCA CORP DISTRIBUTOR AND SPECIAL PRODUCTS DIV
C742595-4649671LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES


Techincal Specification:
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,TY A,GR 60 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND
65.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND
0.106 INCHES MAXIMUM
CENTER HOLE DIAMETER0.347 INCHES MINIMUM AND
0.377 INCHES MAXIMUM


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