025463

View detailed technical data, stock status, and sourcing information for: 025463
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-878-0147

Item Name Code

22113

Assigment Date

01/01/1960 (66 years ago)

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.

1.281 inches nominal flange diameter, 0.125 inches nominal under flange height, 0.500 inches nominal body inside diameter, 1.218 inches nominal body outside diameter, 0.063 inches nominal flange seat to disk end height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flange Diameter: 1.281 inches nominal
Body Outside Diameter: 1.218 inches nominal
Body Inside Diameter: 0.500 inches nominal
Flange Seat To Disk End Height: 0.063 inches nominal
Under Flange Height: 0.125 inches nominal
Seating Surface Shape: flat
Material: steel corrosion resisting overall
Style Designator: plain flanged

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-759-7396	No Name Available	06/01/2011

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
025463	Valve Seat
025463 DC	Valve Seat
180P1043	Valve Seat
380E3	Valve Seat
PLC-11402 PC 6	Valve Seat
PLC-11620 ITEM 6	Valve Seat

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-878-0147?

The FSCG of the NSN 4820-00-878-0147 is 4820

Does the NSN 4820-00-878-0147 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-878-0147 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-00-878-0147 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-878-0147 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-00-878-0147 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960