21ND5134

View detailed technical data, stock status, and sourcing information for: 21ND5134
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-076-3831

Item Name Code

35224

Assigment Date

01/01/1963 (63 years ago)

An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.

1.188 inches nominal shank diameter, 0.812 inches nominal overall height, 45.0 degrees nominal seat angle, 1.188 inches nominal flange diameter, w/one counterbored hole,0.625 in id by 0.570 in.deep in disk top special features

Product Characteristics

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

Shank Diameter: 1.188 inches nominal
Flange Diameter: 1.188 inches nominal
Overall Height: 0.812 inches nominal
Seat Angle: 45.0 degrees nominal
Special Features: w/one counterbored hole,0.625 in id by 0.570 in.deep in disk top
Material: steel comp 303
Material Document And Classification: qq-s-763, class 303, cond a fed spec 1st material response or aisi 303 assn std 2nd material response
Media For Which Designed: hydraulic fluid
Style Designator: poppet

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2825-00-063-1127	No Name Available	01/26/1968
2825-00-893-3454	No Name Available	01/26/1968
2825-00-974-9927	No Name Available	08/01/1976

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
21NA6905	Valve Disk
21ND5134	Valve Disk
280016	Valve Disk
H7957PC21	Valve Disk
H7970PC21	Valve Disk
NA6905PC21	Valve Disk
ND5134PC21	Valve Disk
ND6284PC21	Valve Disk
NH6425PC21	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-00-076-3831?

The FSCG of the NSN 4820-00-076-3831 is 4820

Does the NSN 4820-00-076-3831 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-076-3831 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 4820-00-076-3831 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-076-3831 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 4820-00-076-3831 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963