5331-01-260-9855 O-RING Index 5330-01-260-9857 PACKING,PREFORMED

National Stock Number:
5330-01-260-9856

Federal Supply Class:
5330

National Item Identification Number:
012609856

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:
100-24005283SHEFFER CORP
MIL-P-2573281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS28775-2400U583SAE INTERNATIONAL
MS28775-24081343SOCIETY OF AUTOMOTIVE ENGINEERS INC
SAE-AS287750U583SAE INTERNATIONAL


Techincal Specification:
ELONGATION PERCENTAGE160 MAXIMUM
CENTER HOLE DIAMETER3.719 INCHES MINIMUM AND 3.749 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZY
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
PERIPHERAL DIAMETER4.012 INCHES NOMINAL
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 FAHRENHEIT AND 275.0 FAHRENHEIT


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