3110-00-784-4140 RETAINER,BALL,BEARING Index 5330-00-784-4142 PACKING,PREFORMED

National Stock Number:
5330-00-784-4141

Federal Supply Class:
5330

National Item Identification Number:
007844141

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:
3132366 TYPE DWG P/N PC 1580064NAVAL SHIP SYSTEMS COMMAND
3600-123PC1596169ELECTRIC BOAT CORPORATION
SS209-2104386PC53711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
BODY RECESS DEPTH0.097 INCHES MINIMUM AND 0.112 INCHES MAXIMUM
CENTER HOLE DIAMETER4.781 INCHES MINIMUM AND 4.844 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESPECIAL
CROSS-SECTIONAL HEIGHT0.342 INCHES MINIMUM AND 0.362 INCHES MAXIMUM
CROSS-SECTIONAL THICKNESS0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
FLANGED BODY OUTSIDE DIAMETER5.281 INCHES MINIMUM AND 5.344 INCHES MAXIMUM
HARDNESS RATING75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER5.412 INCHES MINIMUM AND 5.432 INCHES MAXIMUM
RIM SURFACE WIDTH0.125 INCHES NOMINAL


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