5305-01-351-3591

Find complete technical information, availability, and procurement data for: 5305-01-351-3591
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-351-3591

Item Name Code

06657

Assigment Date

01/07/1992 (34 years ago)

0.425 inches nominal thread length, 0.661 inches minimum and 0.691 inches maximum fastener length, 3a thread class, right-hand thread direction, 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: 0.425 inches nominal
Fastener Length: 0.661 inches minimum and 0.691 inches maximum
Head Style: flat countersunk
Head Diameter: 0.461 inches minimum and 0.507 inches maximum
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
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 Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416 ty1 cl3 fed spec single 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
NAS1221R4-4	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-351-3591?

The FSCG of the NSN 5305-01-351-3591 is 5305

Does the NSN 5305-01-351-3591 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-351-3591 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 5305-01-351-3591 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-351-3591 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 5305-01-351-3591 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Tue, Jan 7, 1992