5925-01-263-5990 CIRCUIT BREAKER Index 5330-01-263-5992 PACKING,PREFORMED

National Stock Number:
5330-01-263-5991

Federal Supply Class:
5330

National Item Identification Number:
012635991

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:
D1976 PC.2217062P J VALVES INC
D1976PC22,3IN17062P J VALVES INC
MS28775-2520U583SAE INTERNATIONAL
MS28775-25281343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS28775-25296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SAE-AS287750U583SAE INTERNATIONAL


Techincal Specification:
ELONGATION PERCENTAGE160 MAXIMUM
CENTER HOLE DIAMETER5.211 INCHES MINIMUM AND 5.257 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-25732 MIL SPEC 1ST MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER5.512 INCHES NOMINAL
PROPRIETARY CHARACTERISTICSPACS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TEMP RATING-65.0 DEG FAHRENHEIT AND 275.0 DEG FAHRENHEIT


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