ST7M254-331-3

View detailed technical data, stock status, and sourcing information for: ST7M254-331-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-01-112-7975

Item Name Code

07961

Assigment Date

05/10/1981 (45 years ago)

Any combination of items manufactured from packing material to predetermined dimensions, or any combination of nonmetallic molded or formed shapes (other than solid rubber or synthetic rubber rings having a square or rectangular cross section) specifically designed and manufactured for use as a seal. The assembly may include metal lantern rings, metal separators, and/or end or adapter rings.

2.600 inches nominal outside diameter, square/rectangular bottom ring cross-sectional shape style, square/rectangular top ring cross-sectional shape style, special intermediate ring cross-sectional shape style, 2.250 inches nominal inside diameter

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: special intermediate ring
Cross-Sectional Shape Style: square/rectangular bottom ring
Cross-Sectional Shape Style: square/rectangular top ring
Inside Diameter: 2.250 inches nominal
Outside Diameter: 2.600 inches nominal
Temp Rating: -65.0 fahrenheit and 275.0 fahrenheit
Intermediate Ring Quantity: 1
Joint Type: scarf-bearing surface top ring
Height: 0.250 inches nominal
Material: rubber butadiene-acrylonitrile class nbr intermediate ring

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
7331MT-160-T	Packing Assembly
S38422-331BAK1	Packing Assembly
ST7M254-331-3	Packing Assembly

FAQs

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

What is the FSCG of the NSN 5330-01-112-7975?

The FSCG of the NSN 5330-01-112-7975 is 5330

Does NSN 5330-01-112-7975 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 5330-01-112-7975 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-01-112-7975 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 5330-01-112-7975 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sun, May 10, 1981