3040-01-342-2491

Find complete technical information, availability, and procurement data for: 3040-01-342-2491
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3040 Miscellaneous Power Transmission Equipment

National Stock Number

3040-01-342-2491

Item Name Code

18249

Assigment Date

07/17/1991 (35 years ago)

A single or multi-piece item(s), curved or flat, with frame(s), of transparent materiel. Designed for mounting in a vehicular body, door or the like, to allow visibility and to shield personnel from environmental effects such as rain, dust, wind, and the like. Also includes curved windows without frames forming part of a vehicular body. For ballistic windows, use inc 68191.

35.0 rockwell c minimum and 38.0 rockwell c maximum teeth hardness rating, identical end similarity, 18.603 inches nominal overall length, 2.270 inches nominal worm outside diameter, right-hand worm thread direction

Product Characteristics

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

End Similarity: identical
Overall Length: 18.603 inches nominal
Teeth Hardness Rating: 35.0 rockwell c minimum and 38.0 rockwell c maximum
Worm Thread Direction: right-hand
Worm Outside Diameter: 2.270 inches nominal
Worm Body Length: 6.870 inches nominal
Worm Body Tapered Bearing Surface End: not provided
Shaft Location: both ends of worm
Straight Unthreaded Length: 6.312 inches nominal first end
Straight Unthreaded Length: 5.437 inches nominal second end
Straight Unthreaded Section Diameter: 1.499 inches nominal both ends
Unthreaded Section Keyway Depth: 2.750 inches nominal second end
Unthreaded Section Keyway Depth: 3.500 inches nominal first end
Material: steel

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
7400C-250	Worm Shaft
7460C250	Worm Shaft

FAQs

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

What is the FSCG of the NSN 3040-01-342-2491?

The FSCG of the NSN 3040-01-342-2491 is 3040

Does the NSN 3040-01-342-2491 have a Schedule B code assigned?

Yes, the Schedule B code is 8483105000

Does NSN 3040-01-342-2491 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 3040-01-342-2491 contain precious materials?

Item does not contain precious metal.

Does NSN 3040-01-342-2491 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 3040-01-342-2491 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Wed, Jul 17, 1991