HD121A

View detailed technical data, stock status, and sourcing information for: HD121A
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4310 Compressors and Vacuum Pumps

National Stock Number

4310-00-167-8749

Item Name Code

77777

Assigment Date

01/01/1963 (63 years ago)

steel; 8.250 in. od; 2.437 in. h; 1.625 in. id; six 0.530 in. dia mtg holes equally spaced on 7.000 in. bolt circle dia; five thd holes unevenly spaced on one side only; 5/16-24 unf-2b rh thd size general characteristics item description

Product Characteristics

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

General Characteristics Item Description: steel; 8.250 in. od; 2.437 in. h; 1.625 in. id; six 0.530 in. dia mtg holes equally spaced on 7.000 in. bolt circle dia; five thd holes unevenly spaced on one side only; 5/16-24 unf-2b rh thd size

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
10N	Head Assembly
HD121A	Head Assembly
HL11461PC50-51	Head Assembly
HL11472SH1PC50-50-51	Head Assembly
HL11472SH2PC50-51	Head Assembly

FAQs

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

What is the FSCG of the NSN 4310-00-167-8749?

The FSCG of the NSN 4310-00-167-8749 is 4310

Does NSN 4310-00-167-8749 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 4310-00-167-8749 contain precious materials?

Precious metal content is unknown

Does NSN 4310-00-167-8749 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4310-00-167-8749 was assigned to the Federal Catalog?

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