A448-3-4

View detailed technical data, stock status, and sourcing information for: A448-3-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-380-7951

Item Name Code

15938

Assigment Date

09/28/1993 (32 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

tin overall surface treatment, 0.230 inches minimum and 0.270 inches maximum hole diameter, astmb 152 assn std single material response overall material document and classification, 0.412 inches minimum and 0.440 inches maximum outside diameter, copper overall material

Product Characteristics

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

Hole Diameter: 0.230 inches minimum and 0.270 inches maximum
Outside Diameter: 0.412 inches minimum and 0.440 inches maximum
Material: copper overall
Material Document And Classification: astmb 152 assn std single material response overall
Surface Treatment: tin overall
Surface Treatment Document And Classification: mil-t-10727, ty 1 mil spec single treatment response overall
Style Designator: spring tension

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
10122269	Spring Tension Washer
A448-3-4	Spring Tension Washer
ST4M159-4	Spring Tension Washer

FAQs

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

What is the FSCG of the NSN 5310-01-380-7951?

The FSCG of the NSN 5310-01-380-7951 is 5310

Does the NSN 5310-01-380-7951 have a Schedule B code assigned?

Yes, the Schedule B code is 7415210000

Does NSN 5310-01-380-7951 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 5310-01-380-7951 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-380-7951 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 5310-01-380-7951 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Tue, Sep 28, 1993