4AC255

View detailed technical data, stock status, and sourcing information for: 4AC255
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-157-4862

Item Name Code

15934

Assigment Date

07/06/1983 (43 years ago)

A pliable rubber, felt, leather, or composition ring-shaped element, split or solid; with or without spring or spreader, having a metal shell on all or a portion of at least two of the outer surfaces. It may be designed to be either bolt mounted or pressmounted between fixed and moveable parts to form a tight and effective seal by the pressure of the spring or spreader or the resiliency inherent in the element material. Excludes:packing with retainer.

35.0 millimeters nominal shoulder diameter, 25.4 millimeters minimum and 25.6 millimeters maximum hole diameter, 42.0 millimeters nominal outside diameter, 0.7 millimeters nominal shoulder height, 2.8 millimeters 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: 25.4 millimeters minimum and 25.6 millimeters maximum
Shoulder Diameter: 35.0 millimeters nominal
Outside Diameter: 42.0 millimeters nominal
Shoulder Height: 0.7 millimeters nominal
Material Thickness: 2.8 millimeters nominal
End Item Identification: hemtt family (heavy expanded mobility tactical trucks); 2320-01-097-0260 hiab crane (hemtt)
Style Designator: shouldered

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-01-295-6163	No Name Available	09/04/1991

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
10524165	Shouldered Washer
390-0592	Shouldered Washer
4AC255	Shouldered Washer

FAQs

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

What is the FSCG of the NSN 5310-01-157-4862?

The FSCG of the NSN 5310-01-157-4862 is 5310

Does NSN 5310-01-157-4862 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 5310-01-157-4862 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-157-4862 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 5310-01-157-4862 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Wed, Jul 6, 1983