5120-00-889-2156 BIT,SCREWDRIVER Index 5330-00-889-2159 PACKING,PREFORMED

National Stock Number:
5330-00-889-2158

Federal Supply Class:
5330

National Item Identification Number:
008892158

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.


Manufacturer Information:
54-62-232996169ELECTRIC BOAT CORPORATION
EBCN54-62-232996169ELECTRIC BOAT CORPORATION
SSN613-522-2015699PC2980064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER1.750 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.312 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLEV
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER2.375 INCHES NOMINAL


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