8561SB

View detailed technical data, stock status, and sourcing information for: 8561SB
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-963-6887

Item Name Code

04214

Assigment Date

01/01/1962 (64 years ago)

A pliable rubber, felt, leather, or composition ring-shaped element, split or solid; with or without spring or spreader, having a metal shell on all or a portion of at least two of the outer surfaces. It may be designed to be either bolt mounted or pressmounted between fixed and moveable parts to form a tight and effective seal by the pressure of the spring or spreader or the resiliency inherent in the element material. Excludes:packing with retainer.

3.534 inches minimum and 3.538 inches maximum housing bore diameter, 2.625 inches nominal accommodated shaft diameter, square case style, 0.812 inches nominal seal width, angular-opposed sealing element style

Product Characteristics

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

Accommodated Shaft Diameter: 2.625 inches nominal
Seal Width: 0.812 inches nominal
Case Style: square
Housing Bore Diameter: 3.534 inches minimum and 3.538 inches maximum
Sealing Element Style: angular-opposed
Material: rubber synthetic sealing element a
Material: rubber synthetic sealing element b
Material: steel case

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
8561SB	Plain Encased Seal
8561SG	Plain Encased Seal
A1805P510	Plain Encased Seal

FAQs

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

What is the FSCG of the NSN 5330-00-963-6887?

The FSCG of the NSN 5330-00-963-6887 is 5330

Does the NSN 5330-00-963-6887 have a Schedule B code assigned?

Yes, the Schedule B code is 8484200000

Does NSN 5330-00-963-6887 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 5330-00-963-6887 contain precious materials?

Precious metal content is unknown

Does NSN 5330-00-963-6887 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 5330-00-963-6887 was assigned to the Federal Catalog?

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