Aerospace Hardware Store

Aerospace

Hardware
  1. Home /
  2. Hardware Catalog /
  3. Nonpowered Valves /
  4. 4820-01-172-0490

4820-01-172-0490

Valve Seat

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

53797-13
4820-01-297-5337
Valve Cap
53797-3
4820-01-297-5337
Valve Cap
53798
5315-01-255-1260
Quick Release Pin
53798-1
4820-01-297-5338
Valve Cap
537985
5305-00-939-0483
Machine Screw
5379887
5310-00-281-2442
Key Washer
53798REV D
5315-01-255-1260
Quick Release Pin
53799
4010-01-205-7231
Chain

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
Valve Seat
(NSN) National Stock Number
4820-01-172-0490
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
22113
(FIIG) Federal Item Identification Guide
A15500
Date
02/15/1984 (42 years ago)

0.375 inches nominal single threaded portion thread length, 0.500 inches nominal overall height, 0.825 inches nominal body inside diameter, 1.500 inches single threaded portion nominal thread size, 2a single threaded portion thread class

Specs & Compatibility

Thread Class

2a single threaded portion

Thread Length

0.375 inches nominal single threaded portion

Overall Height

0.500 inches nominal

Body Inside Diameter

0.825 inches nominal

Nominal Thread Size

1.500 inches single threaded portion

Seating Surface Shape

flat

Material

steel corrosion resisting overall

Style Designator

plain threaded

Thread Series Designator

unf single threaded portion

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

0022113

Related Hardware Products

Part Number Description
44B3721-274D PIECE 5C Valve Seat
44B3721-277 Valve Seat

Frequently Asked Questions

What is the FSCG of the NSN 4820-01-172-0490?
The FSCG of the NSN 4820-01-172-0490 is 4820
Does the NSN 4820-01-172-0490 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-01-172-0490 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 4820-01-172-0490 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-01-172-0490 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 4820-01-172-0490 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Wed, Feb 15, 1984