90275A238

View detailed technical data, stock status, and sourcing information for: 90275A238
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-444-8370

Item Name Code

06657

Assigment Date

05/17/1997 (29 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.

0.134 inches maximum thread length, 2a thread class, flat countersunk head style, 0.250 inches nominal fastener length, right-hand thread direction

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.134 inches maximum
Fastener Length: 0.250 inches nominal
Head Style: flat countersunk
Head Diameter: 0.340 inches minimum and 0.385 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 24
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel
Screw Surface Treatment: zinc
Thread Series Designator: unc

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
90275A238	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-444-8370?

The FSCG of the NSN 5305-01-444-8370 is 5305

Does the NSN 5305-01-444-8370 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-444-8370 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 5305-01-444-8370 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-444-8370 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 5305-01-444-8370 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Sat, May 17, 1997