3040-01-398-1988

Find complete technical information, availability, and procurement data for: 3040-01-398-1988
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Federal Supply Group

Mechanical Power Transmission Equipment

Federal Supply Classification

3040 Miscellaneous Power Transmission Equipment

National Stock Number

3040-01-398-1988

Item Name Code

22914

Assigment Date

10/26/1994 (31 years ago)

A device designed to regulate vacuum within the desired operating limits. See also valve, vacuum breaking.

square (round corners) first end style, 0.500 inches nominal first end width across flats, 11.320 inches nominal overall length, splined (involute) second end style, not identical end similarity

Product Characteristics

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

First End Style: square (round corners)
End Similarity: not identical
Second End Style: splined (involute)
Overall Length: 11.320 inches nominal
First End Width Across Flats: 0.500 inches nominal
End Item Identification: 5180-01-272-5929
First End Diameter: 1.3750 inches nominal
Second End Diameter: 1.2810 inches nominal
Second End Spline Length: 0.450 inches nominal
Second End Spline Minor Diameter: 1.2470 inches nominal
Second End Spline Major Diameter: 1.3700 inches minimum and 1.3750 inches maximum
Second End Pressure Angle: 30.0 degrees nominal
Second End Pitch Diameter: 1.3333 inches nominal
Step Quantity: 3
Second End Spline Quantity: 32
Largest Step Diameter: 1.132 inches nominal
First End Step Length: 1.380 inches nominal
Material: steel corrosion resisting

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
DAA7252D715	Shouldered Shaft
DAA7252D715-001	Shouldered Shaft

FAQs

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

What is the FSCG of the NSN 3040-01-398-1988?

The FSCG of the NSN 3040-01-398-1988 is 3040

Does the NSN 3040-01-398-1988 have a Schedule B code assigned?

Yes, the Schedule B code is 8483105000

Does NSN 3040-01-398-1988 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 3040-01-398-1988 contain precious materials?

Item does not contain precious metal.

Does NSN 3040-01-398-1988 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 3040-01-398-1988 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Oct 26, 1994