3120-00-105-8660 BEARING,WASHER,THRUST Index 5331-00-105-8663 O-RING

National Stock Number:
5330-00-105-8661

Federal Supply Class:
5330

National Item Identification Number:
001058661

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:
2640-390X3PC2296169ELECTRIC BOAT CORPORATION
SS845-2050958PC2280064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BODY RECESS DEPTH0.017 INCHES MINIMUM AND 0.033 INCHES MAXIMUM
CENTER HOLE DIAMETER5.637 INCHES MINIMUM AND 5.687 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESPECIAL
CROSS-SECTIONAL HEIGHT0.265 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
CROSS-SECTIONAL THICKNESS0.265 INCHES NOMINAL
FLANGED BODY OUTSIDE DIAMETER6.167 INCHES MINIMUM AND 6.217 INCHES MAXIMUM
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER6.308 INCHES MINIMUM AND 6.358 INCHES MAXIMUM
RIM SURFACE WIDTH0.152 INCHES MINIMUM AND 0.168 INCHES MAXIMUM


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