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National Stock Number:
5330-00-250-0691
Federal Supply Class:
5330
National Item Identification Number:
002500691
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:
| 451083 | 77445 | RTX CORPORATION | | 453971 | 77445 | RTX CORPORATION |
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Techincal Specification:
| CENTER HOLE DIAMETER | 0.299 INCHES MINIMUM AND 0.319 INCHES MAXIMUM | | CROSS-SECTIONAL HEIGHT | 0.275 INCHES MINIMUM AND 0.300 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SPECIAL | | MATERIAL | RUBBER SYNTHETIC OVERALL | | PERIPHERAL DIAMETER | 0.570 INCHES MINIMUM AND 0.595 INCHES MAXIMUM | | RIM SURFACE WIDTH | 0.156 INCHES NOMINAL |
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