AN381-4-8

View detailed technical data, stock status, and sourcing information for: AN381-4-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5315 Pins, Machine Keys and Nails

National Stock Number

5315-00-236-8356

Item Name Code

02381

Assigment Date

01/01/1963 (63 years ago)

A half round, cylindrical, or flat piece of metal, bent to form a straight or crimped two-pronged device with an eye at one end, for inserting in a hole drilled at right angle to the axis of the stud, shaft, or like item. Its ends are separable or one end is bent to hold it in place.

steel comp 302 or steel comp 304 overall material, 0.438 inches minimum and 0.625 inches maximum underloop length, 55.0 rockwell superficial 15-n minimum and 67.0 rockwell superficial 15-n maximum overall hardness rating, extended prong mitre end point type, 0.116 inches minimum and 0.120 inches maximum diameter

Product Characteristics

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

Diameter: 0.116 inches minimum and 0.120 inches maximum
Underloop Length: 0.438 inches minimum and 0.625 inches maximum
Point Type: extended prong mitre end
Hardness Rating: 55.0 rockwell superficial 15-n minimum and 67.0 rockwell superficial 15-n maximum overall
Material: steel comp 302 or steel comp 304 overall
Material Document And Classification: astm a493 assn std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: astm a380 assn std single treatment response overall
Style Designator: standard
Departure From Cited Designator: as modified by point style and packing data

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5315-00-200-3688	Cotter Pin	07/01/2025

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
5315PL0157261	Cotter Pin
AN381-4-8	Cotter Pin
MS24665-366	Cotter Pin
SP90G6	Cotter Pin

FAQs

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

What is the FSCG of the NSN 5315-00-236-8356?

The FSCG of the NSN 5315-00-236-8356 is 5315

Does the NSN 5315-00-236-8356 have a Schedule B code assigned?

Yes, the Schedule B code is 7318240000

Does NSN 5315-00-236-8356 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 5315-00-236-8356 contain precious materials?

Item does not contain precious metal.

Does NSN 5315-00-236-8356 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 5315-00-236-8356 was assigned to the Federal Catalog?

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