5330-00-111-3720 PACKING,PREFORMED Index 5330-00-111-3722 PACKING,PREFORMED

National Stock Number:
5330-00-111-3721

Federal Supply Class:
5330

National Item Identification Number:
001113721

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:
MS9388-28096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
ELONGATION PERCENTAGE125 MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS-7278 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND
80.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
CROSS SECTION OUTSIDE DIAMETER0.135 INCHES MINIMUM AND
0.143 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND
0.143 INCHES MAXIMUM
CENTER HOLE DIAMETER13.954 INCHES MINIMUM AND
14.014 INCHES MAXIMUM
PERIPHERAL DIAMETER14.262 INCHES NOMINAL
TEMP RATING-20.0 DEG FAHRENHEIT AND
400.0 DEG FAHRENHEIT
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS9388-280


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