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National Stock Number:
5330-00-998-1740
Federal Supply Class:
5330
National Item Identification Number:
009981740
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:
| TE1975 | 99251 | MISSION SYSTEMS DAVENPORT INC. |
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Techincal Specification:
| CENTER HOLE DIAMETER | 17.495 INCHES MINIMUM AND 17.505 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | O-RING | | CROSS-SECTIONAL HEIGHT | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM | | HARDNESS RATING | 50.0 SHORE DUROMETER A NOMINAL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ZZ-R-765,GR 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | RUBBER SILICONE CLASS Q OVERALL |
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