5305-01-351-4321

Find complete technical information, availability, and procurement data for: 5305-01-351-4321
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-351-4321

Item Name Code

29294

Assigment Date

01/09/1992 (34 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.594 inches nominal thread length, 1.329 inches minimum and 1.359 inches maximum fastener length, flat countersunk head style, 3a thread class, 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: 3a
Thread Direction: right-hand
Thread Length: 0.594 inches nominal
Fastener Length: 1.329 inches minimum and 1.359 inches maximum
Head Style: flat countersunk
Head Diameter: 0.717 inches minimum and 0.760 inches maximum
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.375 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
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
Material: steel comp 4140 or steel comp e4340 or steel comp 8740 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-nas1580 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
NAS1580A6T12	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-351-4321?

The FSCG of the NSN 5305-01-351-4321 is 5305

Does the NSN 5305-01-351-4321 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-351-4321 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 5305-01-351-4321 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-351-4321 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 5305-01-351-4321 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Thu, Jan 9, 1992