Aerospace Hardware Store

Aerospace

Hardware
  1. Home /
  2. Hardware Catalog /
  3. Nonpowered Valves /
  4. 4820-01-237-6903

4820-01-237-6903

Check 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

9643M40G01
4710-00-111-0978
Metal Tube Assembly
9643M40G02
4710-00-111-0978
Metal Tube Assembly
9643M50G01
5340-00-111-5746
Angle Bracket
9643M54G02
4710-00-111-5695
Metal Tube Assembly
9643M56P01
5330-00-118-3177
Gasket
9643M56P02
5330-01-454-8550
Gasket
9643M61P02
4720-00-116-5870
Nonmetallic Hose Assembly
9643M75G01
4710-01-150-7538
Metal Tube Assembly

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
Check Valve
(NSN) National Stock Number
4820-01-237-6903
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05487
(FIIG) Federal Item Identification Guide
A530B0
Date
08/05/1986 (40 years ago)

disk flow control device, 0.500 inches all ends nominal pipe size accommodated, socket (pipe) all ends connection style, automatic valve operation method, unthreaded internal pipe all ends connection type

Specs & Compatibility

Nominal Pipe Size Accommodated

0.500 inches all ends

Flow Control Device

disk

Connection Style

socket (pipe) all ends

Valve Operation Method

automatic

Connection Type

unthreaded internal pipe all ends

Mounting Position

horizontal or vertical

Maximum Operating Pressure

800.0 pounds per square inch single response

Special Features

swing type

Material

steel uns k03504 body

Material Document And Classification

astm a105 assn std single material response 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

0005487

Related Hardware Products

Part Number Description
HL61.50IN800LB-SW Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-237-6903?
The FSCG of the NSN 4820-01-237-6903 is 4820
Does the NSN 4820-01-237-6903 have a Schedule B code assigned?
Yes, the Schedule B code is 8481302090
Does NSN 4820-01-237-6903 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 4820-01-237-6903 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-237-6903 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 4820-01-237-6903 was assigned to the Federal Catalog?
It was assigned 40 years ago, on Tue, Aug 5, 1986