4820-01-057-7711

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Valve Seat

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

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Featured Parts

1525E02ITEM1

4010-01-497-8758

End Chain Link

1525E02ITEM11

5365-01-497-8761

Straight Spacer

1525E02ITEM12

5365-01-497-8762

Straight Spacer

1525E02ITEM17

5340-01-497-8764

Turnbuckle

1525E02ITEM2

5340-01-497-8765

Turnbuckle

1525E02ITEM8

5315-01-497-8774

Headless Straight Pin

1525E13-10

5306-01-219-0310

Machine Bolt

1525E13-15

5305-01-398-1362

Hexagon Head Cap Screw

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Official Item Classification

Name: Valve Seat
(NSN) National Stock Number: 4820-01-057-7711
(FSG) Federal Supply Group: 48 Valves
(FSC) Federal Supply Classification: 4820 Nonpowered Valves
(INC) Item Name Code: 22113
(FIIG) Federal Item Identification Guide: A15500
Date: 03/19/1978 (48 years ago)

0.562 inches nominal overall height, 2a single threaded portion thread class, 2.500 inches nominal body inside diameter, 0.187 inches nominal single threaded portion thread length, 12 single threaded portion thread quantity per inch

Specs & Compatibility

Thread Class

2a single threaded portion

Thread Length

0.187 inches nominal single threaded portion

Overall Height

0.562 inches nominal

Body Inside Diameter

2.500 inches nominal

Thread Quantity Per Inch

12 single threaded portion

Nominal Thread Size

0.812 inches single threaded portion

Seating Surface Shape

flat

Material

copper alloy overall

Material Document And Classification

qq-n-288 fed spec single material response overall

Style Designator

plain threaded

Thread Series Designator

un single threaded portion

Regulatory Compliance

Precious Metals Indicator

Precious metal content is unknown

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

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

Pseudo Item Name Code

0022113

Related Hardware Products

Part Number	Description
10003-5-Y	Valve Seat
10003-5Y 2 1-2IN	Valve Seat
3300445	Valve Seat
N-10933-H	Valve Seat
N-10933-HPC4 2 1-2IN	Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-057-7711?

The FSCG of the NSN 4820-01-057-7711 is 4820

Does the NSN 4820-01-057-7711 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-057-7711 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 4820-01-057-7711 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-057-7711 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 4820-01-057-7711 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sun, Mar 19, 1978