BM 21-9A

View detailed technical data, stock status, and sourcing information for: BM 21-9A
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Federal Supply Group

Ship and Marine Equipment

Federal Supply Classification

2040 Marine Hardware and Hull Items

National Stock Number

2040-01-298-5741

Item Name Code

17275

Assigment Date

04/18/1989 (37 years ago)

A rigid metal item usually fabricated from steel castings and/or welded steel pieces and designed with one or more hole(s) in line to accompany and hold, align, or support a mechanical shaft that rotates through an arc not to exceed 360 degrees (6.282 radians). It may have provision to accommodate a bushing or sleeve but usually it has a straight drilled shaft-support hole. Mounting holes are provided for attaching to a supporting member or main body. Excludes:housing, bearing unit (as modified).

above operating location, 24.000 inches nominal opening length, flush installation design, 24.000 inches nominal opening width, quick operating control type

Product Characteristics

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

Opening Width: 24.000 inches nominal
Operating Control Type: quick
Installation Design: flush
Opening Length: 24.000 inches nominal
Operating Location: above
Spring Balance Feature: not included
Hasp: not included
Scuttle: not included
Material: aluminum panel

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
110CWPB-167-013	Marine Hatch
21-9A	Marine Hatch
BM 21-9A	Marine Hatch

FAQs

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

What is the FSCG of the NSN 2040-01-298-5741?

The FSCG of the NSN 2040-01-298-5741 is 2040

Does the NSN 2040-01-298-5741 have a Schedule B code assigned?

Yes, the Schedule B code is 8302494500

Does NSN 2040-01-298-5741 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 2040-01-298-5741 contain precious materials?

Item does not contain precious metal.

Does NSN 2040-01-298-5741 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 2040-01-298-5741 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Tue, Apr 18, 1989