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National Stock Number:
5330-01-464-3744
Federal Supply Class:
5330
National Item Identification Number:
014643744
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:
| 593-6961232 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6961232 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| CENTER HOLE DIAMETER | 19.750 INCHES MINIMUM AND 20.250 INCHES MAXIMUM | | CROSS-SECTIONAL HEIGHT | 0.630 INCHES MINIMUM AND 0.880 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | TRIANGLE | | HARDNESS RATING | 70.0 SHORE DUROMETER B MINIMUM AND 80.0 SHORE DUROMETER B MAXIMUM OVERALL | | MATERIAL | RUBBER FLUOROCARBON CLASS FPM OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | PLASTICS PROCESSOR CMU CHAMBER SEAL | | PERIPHERAL DIAMETER | 20.630 INCHES MINIMUM AND 20.880 INCHES MAXIMUM |
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