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National Stock Number:
5330-21-920-3375
Federal Supply Class:
5330
National Item Identification Number:
219203375
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.
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Manufacturer Information:
| 7850-013 ITEM 1 | 57574 | VELAN VALVE CORP. | | 9315-000-357-V | 35743 | VELAN INC |
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Techincal Specification:
| ANGLE | 48.0 DEGREES NOMINAL | | CENTER HOLE DIAMETER | 4.608 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | CUP | | CROSS-SECTIONAL HEIGHT | 0.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A510/A519 ASSN STD 5TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1006 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | GASKET | | PERIPHERAL DIAMETER | 5.250 INCHES NOMINAL | | SPECIAL FEATURES | ROUNDED EDGES/SILVER PLATED(0.002 TO 0.003 INCH); TO BE USED WITH A "GASKET RETAINER"(RETAINER PACKING) IN THIS PARTICULAR APPLICATION IN A VALVE |
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