M25988/1-339

View detailed technical data, stock status, and sourcing information for: M25988/1-339
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-00-288-1998

Item Name Code

47946

Assigment Date

09/17/1973 (52 years ago)

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

0.205 inches minimum and 0.215 inches maximum cross-sectional height, 70.0 shore durometer a nominal hardness rating, 3.645 inches nominal outside diameter, 3.201 inches minimum and 3.249 inches maximum center hole diameter, 125 maximum elongation percentage

Product Characteristics

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

Outside Diameter: 3.645 inches nominal
Cross-Sectional Height: 0.205 inches minimum and 0.215 inches maximum
Center Hole Diameter: 3.201 inches minimum and 3.249 inches maximum
Elongation Percentage: 125 maximum
Hardness Rating: 70.0 shore durometer a nominal
Material: rubber fluorosilicone class fq

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
M25988/1-339	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-00-288-1998?

The FSCG of the NSN 5331-00-288-1998 is 5331

Does the NSN 5331-00-288-1998 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-00-288-1998 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 5331-00-288-1998 contain precious materials?

Precious metal content is unknown

Does NSN 5331-00-288-1998 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 5331-00-288-1998 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Mon, Sep 17, 1973