4-A-31

View detailed technical data, stock status, and sourcing information for: 4-A-31
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-757-4093

Item Name Code

04521

Assigment Date

02/28/1968 (58 years ago)

0.110 inches minimum and 0.117 inches maximum cross-sectional height, 0.062 inches minimum and 0.077 inches maximum cross-sectional thickness, flange cross-sectional shape style, 0.305 inches minimum and 0.313 inches maximum center hole diameter, 0.070 inches minimum and 0.078 inches maximum rim surface width

Product Characteristics

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

Cross-Sectional Shape Style: flange
Cross-Sectional Thickness: 0.062 inches minimum and 0.077 inches maximum
Cross-Sectional Height: 0.110 inches minimum and 0.117 inches maximum
Rim Surface Width: 0.070 inches minimum and 0.078 inches maximum
Center Hole Diameter: 0.305 inches minimum and 0.313 inches maximum
Peripheral Diameter: 0.515 inches minimum and 0.525 inches maximum
Hardness Rating: 70.0 shore durometer a nominal overall
Material: rubber butadiene-acrylonitrile class nbr overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5330-00-119-1967	No Name Available	02/12/1969

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
004031N-7	Preformed Packing
4-A-31	Preformed Packing
4-A-31-BN7	Preformed Packing
4A31BN7	Preformed Packing

FAQs

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

What is the FSCG of the NSN 5330-00-757-4093?

The FSCG of the NSN 5330-00-757-4093 is 5330

Does the NSN 5330-00-757-4093 have a Schedule B code assigned?

Yes, the Schedule B code is 3926904500

Does NSN 5330-00-757-4093 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 5330-00-757-4093 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-757-4093 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5330-00-757-4093 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Feb 28, 1968