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National Stock Number:
5330-01-021-6288
Federal Supply Class:
5330
National Item Identification Number:
010216288
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:
| 2620-241 PC 362 | 96169 | ELECTRIC BOAT CORPORATION | | 2640-697X1PC25 | 96169 | ELECTRIC BOAT CORPORATION | | 2650-241, PC 362 | 96169 | ELECTRIC BOAT CORPORATION | | 845-2180963PC25 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | M83248-1-259 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
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Techincal Specification:
| CENTER HOLE DIAMETER | 6.194 INCHES MINIMUM AND 6.274 INCHES MAXIMUM | | COLOR | BLACK | | CROSS-SECTIONAL HEIGHT | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | O-RING | | HARDNESS RATING | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | RUBBER FLUOROCARBON CLASS FPM OVERALL | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS | | TEMP RATING | -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT |
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