81344E

View detailed technical data, stock status, and sourcing information for: 81344E
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 81344E to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-142-3087

Item Name Code

60396

Assigment Date

11/14/1982 (43 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

0.250 inches nominal hole diameter, 0.375 inches nominal center hole diameter, 3.685 inches nominal bolt circle diameter, 1.000 inches nominal outside diameter, 0.074 inches nominal material thickness

Product Characteristics

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

Hole Diameter: 0.250 inches nominal
Outside Diameter: 1.000 inches nominal
Bolt Circle Diameter: 3.685 inches nominal
Material Thickness: 0.074 inches nominal
Center Hole Diameter: 0.375 inches nominal
Bolt Hole Quantity: 8
Material: rubber
Style Designator: flat

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
81344E	Flat Valve Diaphragm

FAQs

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

What is the FSCG of the NSN 4820-01-142-3087?

The FSCG of the NSN 4820-01-142-3087 is 4820

Does the NSN 4820-01-142-3087 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-142-3087 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 4820-01-142-3087 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-142-3087 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 4820-01-142-3087 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Sun, Nov 14, 1982