18731

View detailed technical data, stock status, and sourcing information for: 18731
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Federal Supply Group

Vehicular Equipment Components

Federal Supply Classification

2520 Vehicular Power Transmission Components

National Stock Number

2520-00-654-3427

Item Name Code

10852

Assigment Date

01/01/1963 (63 years ago)

1.000 inches nominal per foot first end taper, 0.172 inches nominal drilled hole diameter, right-hand first end thread direction, 30.688 inches nominal overall length, 42.0 minimum rockwell c and 48.0 maximum rockwell c metallic hardness rating

Product Characteristics

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

Overall Length: 30.688 inches nominal
First End Thread Direction: right-hand
Metallic Hardness Rating: 42.0 minimum rockwell c and 48.0 maximum rockwell c
Drilled Hole Diameter: 0.172 inches nominal
First End Taper: 1.000 inches nominal per foot
First End Taper Major Diameter: 1.625 inches nominal
First End Keyway Width: 0.438 inches nominal
First End Keyway Depth: 0.137 inches nominal
Second End Spline Length: 1.500 inches nominal
Second End Pitch Diameter: 0.500 inches nominal
First End Type: tapered
Second End Type: splined
First End Thread Size: 1-14
Hole Quantity: 1
First End Thread Series: unf
Second End Spline Quantity: 20
First End Bearing Seat: not included
Second End Spline Type: involute
Second End Spline Pressure Angle In Deg: 30.0
Second End Bearing Seat: not included
End Hole Type: drilled
First End Pin Hole Diameter: 0.172 inches nominal
Special Features: circular tooth thickness 0.0972 on 1.250 pitch dia allowable backlash of spline tooth with mating part 0.0001 to 0.004
Material: steel
Material Document And Classification: sae 1033 to 1035 assn std single material response
Fsc Application Data: trailer air conditioner,type ma-8

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
18731	Automotive Axle Shaft
805336	Automotive Axle Shaft

FAQs

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

What is the FSCG of the NSN 2520-00-654-3427?

The FSCG of the NSN 2520-00-654-3427 is 2520

Does the NSN 2520-00-654-3427 have a Schedule B code assigned?

Yes, the Schedule B code is 8483909500

Does NSN 2520-00-654-3427 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 2520-00-654-3427 contain precious materials?

Precious metal content is unknown

Does NSN 2520-00-654-3427 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 2520-00-654-3427 was assigned to the Federal Catalog?

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