5305-01-260-8941

Find complete technical information, availability, and procurement data for: 5305-01-260-8941
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-260-8941

Item Name Code

29294

Assigment Date

08/05/1987 (38 years ago)

A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole.

3a thread class, right-hand thread direction, 1.236 inches minimum and 1.266 inches maximum fastener length, 0.476 inches minimum and 0.526 inches maximum thread length, flat countersunk head style

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: 0.476 inches minimum and 0.526 inches maximum
Fastener Length: 1.236 inches minimum and 1.266 inches maximum
Head Style: flat countersunk
Head Diameter: 0.428 inches minimum and 0.478 inches maximum
Grip Diameter: 0.3110 inches minimum and 0.3120 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.740 inches minimum and 0.760 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp 4140 or steel comp e4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1581 professional/industrial association standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-288-2465	No Name Available	09/01/1994

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
NAS1581A5H12	Close Tolerance Screw
NAS1581A5H12T	Close Tolerance Screw
NAS1581F5H12	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-260-8941?

The FSCG of the NSN 5305-01-260-8941 is 5305

Does the NSN 5305-01-260-8941 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-260-8941 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 5305-01-260-8941 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-260-8941 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 5305-01-260-8941 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, Aug 5, 1987