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National Stock Number: 5330-01-381-1260
Federal Supply Class: 5330
National Item Identification Number: 013811260
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:
| 211048797 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 595-6401144-6 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6401144 ITEM 6 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6401151 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| MATERIAL | RUBBER CHLOROPRENE CLASS CR OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-6855 CLASS2, TYPE A, GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 40.0 SHORE DUROMETER A NOMINAL OVERALL | | CROSS-SECTIONAL SHAPE STYLE | SPECIAL | | CROSS-SECTIONAL HEIGHT | 0.402 INCHES NOMINAL | | RIM SURFACE WIDTH | 0.158 INCHES NOMINAL | | CENTER HOLE DIAMETER | 0.125 INCHES MINIMUM AND | | 0.130 INCHES MAXIMUM | | PERIPHERAL DIAMETER | 0.542 INCHES MINIMUM AND | | 0.552 INCHES MAXIMUM |
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