Aerospace Hardware Store

Aerospace

Hardware

3151 Flat Valve Diaphragm

4820-01-031-0421

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

801859
5331-01-521-3159
O-Ring
8018590
5315-00-510-6365
Headed Grooved Pin
8018591
5310-00-511-8078
Flat Washer
80186
5310-01-105-7122
Spring Tension Washer
801860
5330-00-737-5022
Gasket
8018630
5330-00-801-8630
Gasket
8018639
5360-00-801-8639
Extension Helical Spring
8018641P7
5330-00-168-3027
Carbon Packing

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
Flat Valve Diaphragm
Part Number
3151
(NSN) National Stock Number
4820-01-031-0421
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
60396
Date
11/17/1976 (49 years ago)

4820-01-031-0421, flat valve diaphragm

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

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

0060396

Related Hardware Products

Part Number Description
3151 Flat Valve Diaphragm
3151-37 Flat Valve Diaphragm

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-031-0421?
The FSCG of the NSN 4820-01-031-0421 is 4820
Does the NSN 4820-01-031-0421 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-031-0421 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 4820-01-031-0421 contain precious materials?
Precious metal content is unknown
Does NSN 4820-01-031-0421 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 4820-01-031-0421 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Wed, Nov 17, 1976