238518

View detailed technical data, stock status, and sourcing information for: 238518
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-106-4354

Item Name Code

06657

Assigment Date

01/17/1981 (45 years ago)

An item formed from sheet spring material into varying flat, concave, curved, or nutlike design. It has an aperture with an elliptical-shaped hole or suitable lugs or prongs designed to retain threaded or unthreaded stud like projecting memebers. When pushed on, it grips by imbedding into the material of the projecting memebers, and does not mate with a thread helix. See also ring, retaining.

right-hand thread direction, 0.889 inches minimum and 1.000 inches maximum thread length, 2a thread class, fillister head style, 0.970 inches minimum and 1.000 inches maximum fastener length

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: 0.889 inches minimum and 1.000 inches maximum
Fastener Length: 0.970 inches minimum and 1.000 inches maximum
Head Style: fillister
Head Diameter: 0.490 inches minimum and 0.518 inches maximum
Head Height: 0.194 inches minimum and 0.211 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 60000 pounds per square inch
Hardness Rating: 70.0 rockwell c minimum and 2100.0 rockwell c maximum
Screw Material: steel
Screw Material Document And Classification: sae j82 assn std single material response
Screw Surface Treatment: zinc
Screw Surface Treatment Document And Classification: bw-162a-p fscm 06853 mfr ref single treatment response
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
17BV371	Machine Screw
238518	Machine Screw
240012	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-106-4354?

The FSCG of the NSN 5305-01-106-4354 is 5305

Does the NSN 5305-01-106-4354 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-106-4354 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 5305-01-106-4354 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-106-4354 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 5305-01-106-4354 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sat, Jan 17, 1981