5305-01-660-8540

Find complete technical information, availability, and procurement data for: 5305-01-660-8540
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-660-8540

Item Name Code

29294

Assigment Date

02/07/2017 (9 years ago)

Chemical composition which is specifically compounded to provide thermal insulating characteristics.

flat countersunk head style, 0.378 inches minimum and 0.428 inches maximum thread length, right-hand thread direction, 3a thread class, 1.013 inches minimum and 1.043 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: 0.378 inches minimum and 0.428 inches maximum
Fastener Length: 1.013 inches minimum and 1.043 inches maximum
Head Style: flat countersunk
Head Diameter: 0.464 inches minimum and 0.507 inches maximum
Grip Diameter: 0.264 inches minimum and 0.265 inches maximum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: b1-bacft
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.615 inches minimum and 0.635 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Special Features: internal drive ribbed
Material: iron alloy 660 overall
Surface Treatment: passivate overall
Thread Series Designator: unjf

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
NAS1580C4R10X	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-660-8540?

The FSCG of the NSN 5305-01-660-8540 is 5305

Does the NSN 5305-01-660-8540 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-660-8540 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 5305-01-660-8540 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-660-8540 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 5305-01-660-8540 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Tue, Feb 7, 2017