123HM28

View detailed technical data, stock status, and sourcing information for: 123HM28
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5330 Packing and Gasket Materials

National Stock Number

5330-00-741-6557

Item Name Code

04214

Assigment Date

01/01/1963 (63 years ago)

0.188 inches nominal seal width, 1.255 inches nominal housing bore diameter, square case style, angular sealing element style, 0.875 inches nominal accommodated shaft diameter

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: 0.875 inches nominal
Seal Width: 0.188 inches nominal
Case Style: square
Housing Bore Diameter: 1.255 inches nominal
Sealing Element Style: angular
Material: rubber synthetic sealing element
Material: steel case

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2520-00-324-0560	No Name Available	01/01/1976

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
123HM28	Plain Encased Seal
302014	Plain Encased Seal
305268	Plain Encased Seal
7416557	Plain Encased Seal
7840S	Plain Encased Seal

FAQs

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

What is the FSCG of the NSN 5330-00-741-6557?

The FSCG of the NSN 5330-00-741-6557 is 5330

Does the NSN 5330-00-741-6557 have a Schedule B code assigned?

Yes, the Schedule B code is 8484200000

Does NSN 5330-00-741-6557 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 5330-00-741-6557 contain precious materials?

Item does not contain precious metal.

Does NSN 5330-00-741-6557 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 5330-00-741-6557 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963