A51-40

View detailed technical data, stock status, and sourcing information for: A51-40
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-140-4932

Item Name Code

07961

Assigment Date

08/25/1971 (54 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.

1 intermediate ring quantity, v bottom ring cross-sectional shape style, 3.750 inches nominal inside diameter, 4.000 inches nominal outside diameter, 2 separator quantity

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: v bottom ring
Inside Diameter: 3.750 inches nominal
Outside Diameter: 4.000 inches nominal
Intermediate Ring Quantity: 1
Separator Quantity: 2
Height: 0.907 inches nominal
Material: plastic phenolic top ring
Material: rubber and cotton intermediate ring
Material: rubber isobutylene-isoprene class iir and cotton bottom 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
A51-40	Packing Assembly

FAQs

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

What is the FSCG of the NSN 5330-00-140-4932?

The FSCG of the NSN 5330-00-140-4932 is 5330

Does NSN 5330-00-140-4932 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 5330-00-140-4932 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-140-4932 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 5330-00-140-4932 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Aug 25, 1971