C3742

View detailed technical data, stock status, and sourcing information for: C3742
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-216-9021

Item Name Code

22113

Assigment Date

01/01/1963 (63 years ago)

An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not be formed or molded to have a beaded or rolled edge, ribs, or any other raised surfaces. The item may contain bolt holes and/or a center hole. Excludes:diaphragm, valve, special shaped and gasket.

2a single threaded portion thread class, 0.750 inches minimum and 0.751 inches maximum body inside diameter, 0.438 inches nominal flange seat to disk end height, 6.160 inches nominal flange diameter, 0.582 inches nominal single threaded portion thread length

Product Characteristics

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

Thread Class: 2a single threaded portion
Thread Length: 0.582 inches nominal single threaded portion
Flange Diameter: 6.160 inches nominal
Body Inside Diameter: 0.750 inches minimum and 0.751 inches maximum
Flange Seat To Disk End Height: 0.438 inches nominal
Under Flange Height: 1.812 inches nominal
Seat Angle In Deg: 5.000 nominal
Thread Quantity Per Inch: 12 single threaded portion
Nominal Thread Size: 5.750 inches single threaded portion
Seating Surface Shape: angular
Material: copper alloy 922 overall
Style Designator: threaded flanged
Thread Series Designator: uns single threaded portion

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
C3742	Valve Seat
C3742J	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-216-9021?

The FSCG of the NSN 4820-00-216-9021 is 4820

Does the NSN 4820-00-216-9021 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-216-9021 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 4820-00-216-9021 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-216-9021 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 4820-00-216-9021 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963