31F-CB7-4IN ITEM 6

View detailed technical data, stock status, and sourcing information for: 31F-CB7-4IN ITEM 6
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-434-7775

Item Name Code

22113

Assigment Date

08/07/1996 (29 years ago)

A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes:laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see gasket. For items manufactured from lubricated plastics, see bearing, washer, thrust. For items manufactured from lubricated felt, see felt, mechanical, preformed. Excludes:disk, valve; insulator washer; and shim. See also spacer, plate and spacer, sleeve.

copper alloy overall material, 4.0 in. swing check valve special features, strategic sealift conversion ships classagavgstrategic sealift conversion ships class end item identification, flat seating surface shape

Product Characteristics

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

End Item Identification: strategic sealift conversion ships classagavgstrategic sealift conversion ships class
Seating Surface Shape: flat
Special Features: 4.0 in. swing check valve
Material: copper alloy overall

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
31F-CB7-4IN ITEM 6	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-434-7775?

The FSCG of the NSN 4820-01-434-7775 is 4820

Does the NSN 4820-01-434-7775 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-434-7775 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 4820-01-434-7775 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-434-7775 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 4820-01-434-7775 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Wed, Aug 7, 1996