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National Stock Number:
5330-01-338-8210
Federal Supply Class:
5330
National Item Identification Number:
013388210
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:
| MS9388-178 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | RUBBER FLUOROCARBON CLASS FPM OVERALL | | ELONGATION PERCENTAGE | 125 MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS7278 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 70.0 SHORE DUROMETER A MINIMUM AND | | 80.0 SHORE DUROMETER A MAXIMUM OVERALL | | CROSS-SECTIONAL SHAPE STYLE | O-RING | | CROSS SECTION OUTSIDE DIAMETER | 0.100 INCHES MINIMUM AND | | 0.106 INCHES MAXIMUM | | CROSS-SECTIONAL HEIGHT | 0.100 INCHES MINIMUM AND | | 0.106 INCHES MAXIMUM | | CENTER HOLE DIAMETER | 9.707 INCHES MINIMUM AND | | 9.767 INCHES MAXIMUM | | PERIPHERAL DIAMETER | 9.943 INCHES NOMINAL | | SPECIFICATION/STANDARD DATA | 96906-MS9388-178 GOVERNMENT STANDARD | | TEMP RATING | -20.0 DEG FAHRENHEIT AND | | 400.0 DEG FAHRENHEIT | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9388-178 |
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