5305-01-312-2594

Find complete technical information, availability, and procurement data for: 5305-01-312-2594
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-312-2594

Item Name Code

06657

Assigment Date

12/13/1989 (36 years ago)

A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.

1.304 inches minimum and 1.334 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 3a thread class, 0.507 inches nominal thread 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: 0.507 inches nominal
Fastener Length: 1.304 inches minimum and 1.334 inches maximum
Head Style: flat countersunk
Head Diameter: 0.703 inches minimum and 0.762 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel comp 4140 or steel comp 4340 or steel comp 8740
Screw Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-8844 mil spec 2nd material response or ams 6414 assn std 2nd material response or mil-s-6049 mil spec 3rd material response
Screw Surface Treatment: cadmium or cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty 1 cl 3 fed spec 1st treatment response or qq-p-416 ty 1 cl 3 fed spec 2nd treatment response
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1221 professional/industrial association standard

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
NAS1221-6-13	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-312-2594?

The FSCG of the NSN 5305-01-312-2594 is 5305

Does the NSN 5305-01-312-2594 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-312-2594 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 5305-01-312-2594 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-312-2594 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 5305-01-312-2594 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Dec 13, 1989