640977

View detailed technical data, stock status, and sourcing information for: 640977
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-957-1527

Item Name Code

04214

Assigment Date

01/01/1962 (64 years ago)

A pliable rubber or composition ring-shaped element, split or jointless (solid) not encased in a metal shell, but having a spring, spreader and/or molded-in reinforcement. It is designed to be pressmounted between fixed and movable or moving parts to form a tight and effective seal.

6.311 inches nominal housing bore diameter, 6.316 inches nominal outside diameter, 1.250 inches nominal seal width, 5.500 inches nominal accommodated shaft diameter, square case style

Product Characteristics

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

Outside Diameter: 6.316 inches nominal
Accommodated Shaft Diameter: 5.500 inches nominal
Seal Width: 1.250 inches nominal
Case Style: square
Housing Bore Diameter: 6.311 inches nominal
Sealing Element Style: angular-opposed
Material: rubber synthetic sealing element
Surface Treatment: plastic case

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2530-00-561-8689	No Name Available	03/01/1977
2530-00-591-7906	No Name Available	01/01/1961
2530-00-735-1734	No Name Available	05/01/1976
3110-00-844-1340	No Name Available	02/03/1969
5330-00-896-8049	No Name Available	07/17/1974
2530-00-989-3429	No Name Available	04/01/1977
5330-01-263-4241	No Name Available	01/01/1991

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
1018Z155	Plain Encased Seal
1565254	Plain Encased Seal
2511337	Plain Encased Seal
377826	Plain Encased Seal
640977	Plain Encased Seal
6463SR	Plain Encased Seal
775698C1	Plain Encased Seal
775698C91	Plain Encased Seal
7803-3693	Plain Encased Seal
801519	Plain Encased Seal
9-049-101605	Plain Encased Seal
974526R91	Plain Encased Seal
A-1205-T-696	Plain Encased Seal
A1205T696	Plain Encased Seal

FAQs

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

What is the FSCG of the NSN 5330-00-957-1527?

The FSCG of the NSN 5330-00-957-1527 is 5330

Does the NSN 5330-00-957-1527 have a Schedule B code assigned?

Yes, the Schedule B code is 8484200000

Does NSN 5330-00-957-1527 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 5330-00-957-1527 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-00-957-1527 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 5330-00-957-1527 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962