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National Stock Number:
5330-01-317-3870
Federal Supply Class:
5330
National Item Identification Number:
013173870
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:
| 938A813-140 | 94259 | BECHTEL MARINE PROPULSION CORPORATION | | AMS7271 | 0U583 | SAE INTERNATIONAL | | AS3578-278 | 0U583 | SAE INTERNATIONAL | | AS3578-278 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | AMS7271 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | | MS9021-278 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | SAE-AS3578 | 0U583 | SAE INTERNATIONAL |
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Techincal Specification:
| CENTER HOLE DIAMETER | 11.918 INCHES MINIMUM AND 12.050 INCHES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | ZZZW | | CROSS-SECTIONAL HEIGHT | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM | | DEPARTURE FROM CITED DOCUMENT | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | ELONGATION PERCENTAGE | 200 MAXIMUM | | HARDNESS RATING | 65.0 SHORE DUROMETER A NOMINAL | | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR | | PERIPHERAL DIAMETER | 12.262 INCHES NOMINAL |
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