2644-857-01-12

View detailed technical data, stock status, and sourcing information for: 2644-857-01-12
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-054-3850

Item Name Code

22113

Assigment Date

05/30/1967 (59 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

items that support a level i or subsafe critical system/component that has undergone quality assurance during the acquisition process and requires objective quality evidence (oqe) traceable to permanent marking on the material reference number differentiating characteristics, zzzy criticality code justification

Product Characteristics

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

Criticality Code Justification: zzzy
Reference Number Differentiating Characteristics: items that support a level i or subsafe critical system/component that has undergone quality assurance during the acquisition process and requires objective quality evidence (oqe) traceable to permanent marking on the material

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-205-1106	No Name Available	03/01/1986

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
255122PC3	Valve Seat
255122PC3Q3	Valve Seat
255584 PIECE 13	Valve Seat
255584 PIECE 13Q3	Valve Seat
256348 PIECE 6	Valve Seat
256348 PIECE 6Q3	Valve Seat
2640-801X01 ITEM 13	Valve Seat
2640-801X01 ITEM 13Q3	Valve Seat
2640-801X1PC13	Valve Seat
2640-801X1PC13Q3	Valve Seat
2640-857X1PC8	Valve Seat
2640-857X1PC8Q3	Valve Seat
2640-859X1PC4	Valve Seat
2640-859X1PC4Q3	Valve Seat
264080101-0013	Valve Seat
264080101-0013Q3	Valve Seat
2642-857-01 ITEM 28	Valve Seat
2642-857-01 ITEM 28Q3	Valve Seat
2644-857-01-12	Valve Seat
2644-857-01-ITEM NO-12	Valve Seat
2644-857-01-ITEM NO-12Q3	Valve Seat
71553-93X40PC2	Valve Seat
71553-93X40PC2Q3	Valve Seat
7383858-264285701-28	Valve Seat
7383858-264285701-28Q3	Valve Seat
845-4558795 ITEM 28	Valve Seat
845-4558795 ITEM 28Q3	Valve Seat
845-4687577 ITEM 27	Valve Seat
845-4687577 ITEM27Q3	Valve Seat
845-7285297PC13	Valve Seat
845-7285297PC13Q3	Valve Seat
845-8616970-ITEM NO-12	Valve Seat
845-8616970-ITEM NO-12Q3	Valve Seat
H547-0001-264285701-28	Valve Seat
H547-0001-264285701-28Q3	Valve Seat
SSN671-508-2048224PC2	Valve Seat
SSN671-508-2048224PC2Q3	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-054-3850?

The FSCG of the NSN 4820-00-054-3850 is 4820

Does the NSN 4820-00-054-3850 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-054-3850 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 4820-00-054-3850 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-054-3850 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 4820-00-054-3850 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, May 30, 1967