5330-01-353-2769 PACKING,PREFORMED Index 5330-01-353-2771 GASKET

National Stock Number:
5330-01-353-2770

Federal Supply Class:
5330

National Item Identification Number:
013532770

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:
87-02-34052 C10758265STRUTHERS WELLS CORP
M83248/1-283(MOD)81349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER16.875 INCHES MINIMUM AND 17.035 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZW
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
DEPARTURE FROM CITED DOCUMENTMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
PERIPHERAL DIAMETER17.233 INCHES NOMINAL


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