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National Stock Number:
5330-00-720-2131
Federal Supply Class:
5330
National Item Identification Number:
007202131
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:
| 55D2-326 | 04236 | LOCKHEED MARTIN CORP | | 55D2-326 | 38597 | LOCKHEED MARTIN CORPORATION | | 597-518-1884492REVAPC11 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 9762-157X5PC11 | 96169 | ELECTRIC BOAT CORPORATION | | AN-6227-29 | 06644 | CHICAGO GASKET CO | | AN6227-29 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| CENTER HOLE DIAMETER | 1.590 INCHES MINIMUM AND 1.610 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | O-RING | | CROSS-SECTIONAL HEIGHT | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM | | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY MATERIAL | | HARDNESS RATING | 65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL | | MATERIAL | RUBBER SYNTHETIC OVERALL | | TEMP RATING | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT |
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