21721N ITEM 5

View detailed technical data, stock status, and sourcing information for: 21721N ITEM 5
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-119-1177

Item Name Code

27565

Assigment Date

09/17/1981 (44 years ago)

A headed fastening device having a solid cylindrical or tubular body with retaining ball or pinlike detent(s). The detent(s) is/are positioned and actuated by means of a spring, elastomer or plunger. Plunger may be operated by thumb, cam or other means. May be furnished with a pull ring, pull and/or lock ring, attaching ring or hook.

straight thru body style, 3.875 inches nominal first end flange outside diameter, raised first end style designator, raised face flange first end connection type, steam media for which designed

Product Characteristics

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

First End Flange Outside Diameter: 3.875 inches nominal
Body Style: straight thru
Media For Which Designed: steam
First End Connection Type: raised face flange
First End Style Designator: raised
First End Raised Face Height: 0.062 inches nominal
First End Raised Face Diameter: 1.688 inches nominal
First End Flange Shape Style: round w/ bolt holes
First End Flange Thickness: 0.375 inches nominal
First End Bolt Hole Quantity: 4
First End Bolt Hole Diameter: 0.625 inches nominal
First End Bolt Circle Diameter: 2.750 inches nominal
Second End Relationship With First End: identical
Flow Control Device: disk, flat, top and bottom guided
Flow Control Device Material: unable to decode
End Connection Quantity: 2
Outlet Pressure Range: +100.0 to 450.0 pounds per square inch
Regulation Type: automatic single stage
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 150.0 pounds per square inch
Filter: not included
Temp Rating: 550.0 fahrenheit maximum
Material: unable to decode
Material Document And Classification: unable to decode

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
17390N AND 2172	Fluid Pressure Regulating Valve
17390N-2172IN-LNS-5D3/4IN	Fluid Pressure Regulating Valve
17390N-LNS-5D-3/4IN	Fluid Pressure Regulating Valve
17390N/FLNS5D 2	Fluid Pressure Regulating Valve
21721N ITEM 5	Fluid Pressure Regulating Valve
Y303700511	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-01-119-1177?

The FSCG of the NSN 4820-01-119-1177 is 4820

Does the NSN 4820-01-119-1177 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-01-119-1177 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 4820-01-119-1177 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-119-1177 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 4820-01-119-1177 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Sep 17, 1981