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National Stock Number:
5330-01-107-0070
Federal Supply Class:
5330
National Item Identification Number:
011070070
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:
| H-5478753PC152 | 34700 | GENERAL ELECTRIC CO INSTRUMENTATION AND COMPUTER SERVICE DEPT | | MS9021-031 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL | | ELONGATION PERCENTAGE | 200 MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS-7271 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 60.0 SHORE DUROMETER A MINIMUM AND | | 70.0 SHORE DUROMETER A MAXIMUM OVERALL | | CROSS-SECTIONAL SHAPE STYLE | O-RING | | CROSS-SECTIONAL HEIGHT | 0.067 INCHES MINIMUM AND | | 0.073 INCHES MAXIMUM | | CENTER HOLE DIAMETER | 1.729 INCHES MINIMUM AND | | 1.749 INCHES MAXIMUM | | PERIPHERAL DIAMETER | 1.879 INCHES NOMINAL | | DEPARTURE FROM CITED DESIGNATOR | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | CRITICALITY CODE JUSTIFICATION | ZZZX | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9021-031 |
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