M25988/1-346

View detailed technical data, stock status, and sourcing information for: M25988/1-346
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5331 O-Ring

National Stock Number

5331-01-007-1620

Item Name Code

47946

Assigment Date

07/31/1975 (51 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

4.520 inches nominal outside diameter, 125 maximum elongation percentage, 70.0 shore durometer a nominal hardness rating, 0.205 inches minimum and 0.215 inches maximum cross-sectional height, 4.072 inches minimum and 4.128 inches maximum center hole diameter

Product Characteristics

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

Outside Diameter: 4.520 inches nominal
Cross-Sectional Height: 0.205 inches minimum and 0.215 inches maximum
Center Hole Diameter: 4.072 inches minimum and 4.128 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
M25988/1-346	O-Ring

FAQs

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

What is the FSCG of the NSN 5331-01-007-1620?

The FSCG of the NSN 5331-01-007-1620 is 5331

Does the NSN 5331-01-007-1620 have a Schedule B code assigned?

Yes, the Schedule B code is 4016930000

Does NSN 5331-01-007-1620 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 5331-01-007-1620 contain precious materials?

Item does not contain precious metal.

Does NSN 5331-01-007-1620 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 5331-01-007-1620 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Thu, Jul 31, 1975