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National Stock Number:
5330-00-274-6941
Federal Supply Class:
5330
National Item Identification Number:
002746941
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.
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Manufacturer Information:
| 32P237714-21-11 | 98738 | HERLEY CHICAGO DBA STEWART WARNER ELECTRONICS |
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Techincal Specification:
| CENTER HOLE DIAMETER | 16.855 INCHES MINIMUM AND 16.875 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SPECIAL | | CROSS-SECTIONAL HEIGHT | 0.280 INCHES NOMINAL | | HARDNESS RATING | 35.0 SHORE DUROMETER A MINIMUM AND 45.0 SHORE DUROMETER A MAXIMUM OVERALL | | OUTER GROOVE DEPTH | 0.031 INCHES NOMINAL | | OUTER GROOVE WIDTH | 0.042 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-6855 CL 2,TY A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | RUBBER CHLOROPRENE CLASS CR OVERALL | | PERIPHERAL DIAMETER | 16.984 INCHES NOMINAL |
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