51197-H-183

View detailed technical data, stock status, and sourcing information for: 51197-H-183
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-217-5721

Item Name Code

22113

Assigment Date

09/28/1985 (40 years ago)

3a single threaded portion thread class, 0.312 inches nominal single threaded portion thread length, 18 single threaded portion thread quantity per inch, 1.562 inches nominal body inside diameter, 0.312 inches nominal overall height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a single threaded portion
Thread Length: 0.312 inches nominal single threaded portion
Overall Height: 0.312 inches nominal
Body Inside Diameter: 1.562 inches nominal
Thread Quantity Per Inch: 18 single threaded portion
Nominal Thread Size: 2.062 inches single threaded portion
Seating Surface Shape: flat
Material: nickel alloy overall
Style Designator: plain threaded
Thread Series Designator: uns single threaded portion

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-292-4375	No Name Available	05/01/2005

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
51177-H	Valve Seat
51177H-180	Valve Seat
51188-H	Valve Seat
51197-H-183	Valve Seat
51197H85J-183	Valve Seat

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-217-5721?

The FSCG of the NSN 4820-01-217-5721 is 4820

Does the NSN 4820-01-217-5721 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-217-5721 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 4820-01-217-5721 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-217-5721 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 4820-01-217-5721 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Sep 28, 1985