810-4385049-X-021

View detailed technical data, stock status, and sourcing information for: 810-4385049-X-021
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-103-0159

Item Name Code

77777

Assigment Date

11/01/1980 (45 years ago)

A replaceable cylindrical item designed to provide wear surface and maintain alignment of a reciprocating valve stem and the like, it may have a flange(s) and/or grooves.

nickel-copper,qq-n-281,class a; 2.312 in. o/a h,2.750 in. body od,hex socket,1.781 in. w across flats; with four holes,0.406 in. dia thru and counterbored 0.594 in.,equally spaced 90 deg apart,on periphery of largest end general characteristics item description

Product Characteristics

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

General Characteristics Item Description: nickel-copper,qq-n-281,class a; 2.312 in. o/a h,2.750 in. body od,hex socket,1.781 in. w across flats; with four holes,0.406 in. dia thru and counterbored 0.594 in.,equally spaced 90 deg apart,on periphery of largest end

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
803-4385049-B-021	Valve Lock
803-4385049-X-021	Valve Lock
810-4385049-B-021	Valve Lock
810-4385049-X-021	Valve Lock

FAQs

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

What is the FSCG of the NSN 4820-01-103-0159?

The FSCG of the NSN 4820-01-103-0159 is 4820

Does NSN 4820-01-103-0159 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 4820-01-103-0159 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-103-0159 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 4820-01-103-0159 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sat, Nov 1, 1980