209-060-657-001

View detailed technical data, stock status, and sourcing information for: 209-060-657-001
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-181-9248

Item Name Code

05487

Assigment Date

02/01/1971 (55 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

automatic valve operation method, external seat for gasket seal (boss) 1st end connection style, 3a 1st end thread class, helicopter,iroquois uh-1;helicopter,cobra/tow,ah series end item identification, right-hand 1st end thread direction

Product Characteristics

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

Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
End Item Identification: helicopter,iroquois uh-1;helicopter,cobra/tow,ah series
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Mounting Position: horizontal
Nominal Thread Size: 0.438 inches 1st end
Criticality Code Justification: feat
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Special Features: weapon system essential
Style Designator: straight thru
Thread Series Designator: unjf 1st 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
209-060-657	Check Valve
209-060-657-001	Check Valve
209-060-657-1	Check Valve
2632T4TT5	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-181-9248?

The FSCG of the NSN 4820-00-181-9248 is 4820

Does NSN 4820-00-181-9248 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 4820-00-181-9248 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-181-9248 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 4820-00-181-9248 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Feb 1, 1971