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National Stock Number:
5330-00-105-6857
Federal Supply Class:
5330
National Item Identification Number:
001056857
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:
| 2640-357X3PC37 | 96169 | ELECTRIC BOAT CORPORATION | | SS845-2050896PC37 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
| BODY RECESS DEPTH | 0.012 INCHES MINIMUM AND 0.028 INCHES MAXIMUM | | CENTER HOLE DIAMETER | 2.917 INCHES MINIMUM AND 2.947 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | SPECIAL | | CROSS-SECTIONAL HEIGHT | 0.137 INCHES MINIMUM AND 0.153 INCHES MAXIMUM | | CROSS-SECTIONAL THICKNESS | 0.119 INCHES NOMINAL | | FLANGED BODY OUTSIDE DIAMETER | 3.127 INCHES MINIMUM AND 3.213 INCHES MAXIMUM | | HARDNESS RATING | 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL | | PERIPHERAL DIAMETER | 3.231 INCHES MINIMUM AND 3.277 INCHES MAXIMUM | | RIM SURFACE WIDTH | 0.087 INCHES MINIMUM AND 0.103 INCHES MAXIMUM |
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