5305-00-446-5914 THUMBSCREW Index 5855-00-446-5916 SHIELD LIGHT

National Stock Number:
5330-00-446-5915

Federal Supply Class:
5330

National Item Identification Number:
004465915

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:
13206E773880662POLAN INDUSTRIES
13206E773881336CHIEF OF ENGINEERS DEPT OF ARMY
1915427777L3 TECHNOLOGIES, INC.
155-773880662POLAN INDUSTRIES


Techincal Specification:
CENTER HOLE DIAMETER5.750 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.312 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESPECIAL
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
INNER GROOVE DEPTH0.031 INCHES MAXIMUM
INNER GROOVE WIDTH0.125 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
PERIPHERAL DIAMETER6.000 INCHES MAXIMUM


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