Aerospace Hardware Store

Aerospace

Hardware
  1. Home /
  2. Hardware Catalog /
  3. Nonpowered Valves /
  4. 4820-01-657-7638

4820-01-657-7638

Safety Relief Valve

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

7080510
4730-01-514-0734
Lubrication Fitting
7080511
4730-01-670-2796
Hose Clamp
708053021
5355-00-579-7059
Bushing-Shaft Insulated Coupling
70805335
4820-01-684-5250
Ball Valve
7080534
4730-01-678-0604
Hose Clamp
70805378
4820-01-584-9228
Ball Valve
7080558
4730-01-707-0718
Hose Clamp
708056-1
5330-01-103-1619
Gasket

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
(NSN) National Stock Number
4820-01-657-7638
(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
08/29/2016 (10 years ago)

steel comp 316 body material, pressure relief valve part name assigned by controlling agency, 1.63 inches face to face distance, reverse osmosis unit end item identification, 104.00 pounds per square inch opening pressure setting

Specs & Compatibility

End Item Identification

reverse osmosis unit

Opening Pressure Setting

104.00 pounds per square inch

Face To Face Distance

1.63 inches

Part Name Assigned By Controlling Agency

pressure relief valve

Material

steel comp 316 body

Style Designator

straight thru

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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
EV313786 Safety Relief Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-657-7638?
The FSCG of the NSN 4820-01-657-7638 is 4820
Does the NSN 4820-01-657-7638 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-01-657-7638 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 4820-01-657-7638 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-657-7638 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 4820-01-657-7638 was assigned to the Federal Catalog?
It was assigned 10 years ago, on Mon, Aug 29, 2016