40401-902

View detailed technical data, stock status, and sourcing information for: 40401-902
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-181-8920

Item Name Code

27565

Assigment Date

10/24/1970 (55 years ago)

union nut and tailpiece furnished items, straight thru body style, unthreaded internal pipe first end connection type, water, fresh and water, salt media for which designed, unable to decode stem material

Product Characteristics

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

Body Style: straight thru
Stem Material: unable to decode
Furnished Items: union nut and tailpiece
Media For Which Designed: water, fresh and water, salt
First End Connection Type: unthreaded internal pipe
First End Style Designator: streamlined with one brazing ring
First End Nominal Pipe Size Accommodated: 1.500 inches
Second End Relationship With First End: identical
Flow Control Device: diaphragm
Flow Control Device Material: unable to decode
End Connection Quantity: 2
Renewable Seat Ring Type: threaded
Outlet Pressure Range: +25.0 to 60.0 pounds per square inch
Regulation Type: automatic double stage
Valve Stem Design: single seat
Valve Loading Method: spring
Maximum Inlet Pressure Rating: 150.0 pounds per square inch
Filter: not included
End Item Identification: tarawa class lha, nimitz class cvn, oliver perry class ffg, forrestal class cv, emorys . land class as, ticonderoga class cg (47), spruance class dd (963), wasp class lhd.
Temp Rating: 165.0 fahrenheit nominal
Criticality Code Justification: feat
Special Features: weapon system essential. ends w/o brazing rings installed.
Material: unable to decode
Material Document And Classification: unable to decode
Special Test Features: high-impact shock tests are requested as directed in paragraphs 3.6 and 4.4.2.3 of mil-v-2042 in pac test above
Test Data Document: "81349-milv2042 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Nondefinitive Spec/Std Data: 2 type

Replaces National Stock Numbers

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

NSN	Name	Date
4820-01-233-0688	No Name Available	10/01/1988

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
30808020-1501B	Fluid Pressure Regulating Valve
30808260REVF	Fluid Pressure Regulating Valve
40401-09 25-60 PSI	Fluid Pressure Regulating Valve
40401-09 25TO60	Fluid Pressure Regulating Valve
40401-09 REV A	Fluid Pressure Regulating Valve
40401-9	Fluid Pressure Regulating Valve
40401-902	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-181-8920?

The FSCG of the NSN 4820-00-181-8920 is 4820

Does the NSN 4820-00-181-8920 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-00-181-8920 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 4820-00-181-8920 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-181-8920 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 4820-00-181-8920 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Sat, Oct 24, 1970