4820-01-490-0301

Find complete technical information, availability, and procurement data for: 4820-01-490-0301
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-490-0301

Item Name Code

05488

Assigment Date

09/19/2001 (24 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

5.625 inches first connection face to centerline distance, 900.0 fahrenheit single response maximum operating temp, automatic valve operation method, 1.500 inches valve size, e/i:valve,relief 1.5h3 pop safety valve style hna end item identification

Product Characteristics

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

Maximum Operating Temp: 900.0 fahrenheit single response
End Item Identification: e/i:valve,relief 1.5h3 pop safety valve style hna
Valve Operation Method: automatic
Valve Size: 1.500 inches
First Connection Face To Centerline Distance: 5.625 inches
Second Connection Face To Centerline Distance: 4.875 inches
Special Features: 1.5 inch nhas 37 inlet,3 inch outlet ,900lb inlet,150lb outlet h orface,flanged .75 in. on 6 in.circle,4 holes,.875 in. holes on 4.5 in.circle,4 holes,valve setting is not to exceed 640lbs.
Material: steel uns j12522 body
Style Designator: angle flanged ends

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
57694 MODEL 1	Safety Relief Valve
A-32934-1	Safety Relief Valve
D-29631	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-490-0301?

The FSCG of the NSN 4820-01-490-0301 is 4820

Does the NSN 4820-01-490-0301 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-490-0301 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 4820-01-490-0301 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-490-0301 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 4820-01-490-0301 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Wed, Sep 19, 2001