CA4520-4-09

View detailed technical data, stock status, and sourcing information for: CA4520-4-09
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-316-8030

Item Name Code

29294

Assigment Date

11/11/1973 (52 years ago)

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes:ring, connecting, round.

0.299 inches minimum and 0.323 inches maximum thread length, 0.981 inches minimum and 1.001 inches maximum fastener length, detent ring grip locking feature, 3a thread class, 0.076 inches minimum and 0.086 inches maximum first hole shank unthreaded hole diameter

Product Characteristics

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

Thread Class: 3a
Thread Length: 0.299 inches minimum and 0.323 inches maximum
Fastener Length: 0.981 inches minimum and 1.001 inches maximum
Locking Feature: detent ring grip
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Surface Finish: 63.0 microinches grip

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
AS195-4-09	Close Tolerance Screw
CA4520-4-09	Close Tolerance Screw
MS27577-4-09	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-316-8030?

The FSCG of the NSN 5305-00-316-8030 is 5305

Does the NSN 5305-00-316-8030 have a Schedule B code assigned?

Yes, the Schedule B code is 7318159000

Does NSN 5305-00-316-8030 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 5305-00-316-8030 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-316-8030 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 5305-00-316-8030 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Nov 11, 1973