AS108-04-31

View detailed technical data, stock status, and sourcing information for: AS108-04-31
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-011-4999

Item Name Code

29294

Assigment Date

10/23/1975 (50 years ago)

3a thread class, 0.278 inches minimum and 0.329 inches maximum thread length, crowned hexagon head style, right-hand thread direction, 2.356 inches minimum and 2.376 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: 3a
Thread Direction: right-hand
Thread Length: 0.278 inches minimum and 0.329 inches maximum
Fastener Length: 2.356 inches minimum and 2.376 inches maximum
Head Style: crowned hexagon
Head Height: 0.126 inches minimum and 0.141 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Locking Feature: detent ball grip
Grip Diameter: 0.2487 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.937 inches minimum and 1.953 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 63000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.260 inches minimum and 2.280 inches maximum first hole
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Special Features: retaining element in shank
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-151-8645	No Name Available	05/01/1993

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
AS108-04-31	Close Tolerance Screw
AS169-4-31	Close Tolerance Screw
CA2630-0431	Close Tolerance Screw
CA2658-4-31	Close Tolerance Screw
GB511AE4-31	Close Tolerance Screw
MS3369B431	Close Tolerance Screw
NASM3369B431	Close Tolerance Screw
VP1119-4-31	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-011-4999?

The FSCG of the NSN 5305-01-011-4999 is 5305

Does the NSN 5305-01-011-4999 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-011-4999 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 5305-01-011-4999 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-011-4999 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 5305-01-011-4999 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Thu, Oct 23, 1975