Aerospace Hardware Store

Aerospace

Hardware

21-42657A4 Check Valve

4820-01-534-8760

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

1224710-1
5305-00-303-9586
Setscrew
1224715574 PC 2
5315-01-287-5857
Headed Grooved Pin
1224715574 PIECE 202
5315-01-287-5857
Headed Grooved Pin
122472
5305-00-012-2472
Hexagon Head Cap Screw
122476
5305-00-978-1838
Tapping Screw
12247E
5307-00-359-1243
Shouldered Stud
12247R
5307-00-359-1243
Shouldered Stud
12248
4810-00-332-8027
Directional Con Sleeve and Slide

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
Part Number
21-42657A4
(NSN) National Stock Number
4820-01-534-8760
(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
11/04/2005 (20 years ago)

55/60 (3 cyl) jet 40/45; cylinderblock and crankcase, ref no 8 end item identification

Specs & Compatibility

End Item Identification

55/60 (3 cyl) jet 40/45; cylinderblock and crankcase, ref no 8

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
21-42657A4 Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-534-8760?
The FSCG of the NSN 4820-01-534-8760 is 4820
Does NSN 4820-01-534-8760 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 4820-01-534-8760 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-534-8760 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 4820-01-534-8760 was assigned to the Federal Catalog?
It was assigned 20 years ago, on Fri, Nov 4, 2005