Aerospace Hardware Store

Aerospace

Hardware

2391237-2 Safety Relief Valve

4820-00-464-4331

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

Request for Quote

Send us a request for quote using the form below. Our team will promptly provide you with the latest pricing and availability details.

AS9120 ISO9001 Aviation Suppliers Association Global Shipping

Featured Parts

5917374-1
5330-01-411-5883
Nonmetallic Channel Seal
5917374-2
5330-01-411-5884
Nonmetallic Channel Seal
5917374-3
5330-01-411-5888
Nonmetallic Channel Seal
5917393-1
5330-01-411-5886
Nonmetallic Channel Seal
5917393-2
5330-01-411-5887
Nonmetallic Channel Seal
59174-2
5340-00-246-6391
Spacing Threaded Standoff
5917494
5340-01-406-4207
Butt Hinge
5917494-1
5340-01-406-4207
Butt Hinge

Need Assistance?

Our catalog is extensive, but we understand that sometimes specific needs might not be immediately available. If you could not find the exact products you were searching for, we are here to help!

Contact us directly, and our team will assist you in finding the perfect solution for your requirements.

Contact Us

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping

Official Item Classification

Name
Safety Relief Valve
Part Number
2391237-2
(NSN) National Stock Number
4820-00-464-4331
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05488
(FIIG) Federal Item Identification Guide
A046B0
Date
05/23/1969 (57 years ago)

inside screw bonnet type, ball flow control device, threaded bonnet attachment method, 3a 1st end thread class, right-hand 1st end thread direction

Specs & Compatibility

Thread Class

3a 1st end

Thread Direction

right-hand 1st end

Flow Control Device

ball

Bonnet Type

inside screw

Bonnet Attachment Method

threaded

Disk Loading Method

spring

Valve Discharge Flow Rate

12.0 cubic feet per minute

Maximum Operating Temp

275.0 fahrenheit single response

Connection Style

external seat for gasket seal (boss) 1st end

Valve Operation Method

automatic

Connection Type

threaded external boss 1st end

Maximum Operating Pressure

90.0 pounds per square inch single response

Nominal Thread Size

0.375 inches 1st end

Opening Pressure Setting

115.0 pounds per square inch

Material

aluminum alloy 2024 body

Material

aluminum alloy 2024 seat

Material

steel comp 440a or steel comp 440b or steel comp 440c flow control device

Material Document And Classification

ams 7445 assn std single material response flow control device

Material Document And Classification

qq-a-225/6,alloy 2024,t4 fed spec single material response seat

Material Document And Classification

qq-a-225/6,alloy 2024,t4 fed spec single material response body

Media For Which Designed

air 1st response

Media For Which Designed

nitrogen, gaseous 2nd response

Surface Treatment

anodize

Surface Treatment Document And Classification

mil-a-8625,ty 1 mil spec single treatment response

Style Designator

angle

Thread Series Designator

unf 1st end

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005488

Related Hardware Products

Part Number Description
2391237-2 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-464-4331?
The FSCG of the NSN 4820-00-464-4331 is 4820
Does the NSN 4820-00-464-4331 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-464-4331 require demilitarization?
"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"
Does NSN 4820-00-464-4331 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-464-4331 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 4820-00-464-4331 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Fri, May 23, 1969