801-6405539-AY77

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-442-1758

Item Name Code

05488

Assigment Date

03/06/1997 (29 years ago)

A switch which is externally actuated by a lever and whose contacts open and close with an instantaneous (snap) action; includes items having one or more momentary positions. Includes switches (snap action) which use mercury to bridge contacts, and assemblages of complete switches (snap action) having common actuators. Excludes:switch,lever; switch,rotary; switch,knife; switch,sensitive; and switch,box.

ship, ohio clas s ssn (trident) end item identification, automatic valve operation method, 1.500 nps x 2.250-12unj-3b special features

Product Characteristics

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

End Item Identification: ship, ohio clas s ssn (trident)
Valve Operation Method: automatic
Special Features: 1.500 nps x 2.250-12unj-3b

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
211082020	Safety Relief Valve
801-6405539-AY77	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-442-1758?

The FSCG of the NSN 4820-01-442-1758 is 4820

Does the NSN 4820-01-442-1758 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-442-1758 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 4820-01-442-1758 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-442-1758 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 4820-01-442-1758 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Mar 6, 1997