5305-01-666-4638

Find complete technical information, availability, and procurement data for: 5305-01-666-4638
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-666-4638

Item Name Code

29294

Assigment Date

09/07/2017 (8 years ago)

Do not use if a more specific item name is applicable.

0.403 inches nominal thread length, flat countersunk head style, 3a thread class, 1.263 inches minimum and 1.293 inches maximum fastener length, 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: 0.403 inches nominal
Fastener Length: 1.263 inches minimum and 1.293 inches maximum
Head Style: flat countersunk
Head Diameter: 0.3988 inches nominal
Head Height: 0.057 inches nominal
Grip Diameter: 0.2646 inches minimum and 0.2651 inches maximum
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.2500 inches
Grip Length: 0.865 inches minimum and 0.885 inches maximum
Thread Quantity Per Inch: 28
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: bolt, shear, 100 degree flush reduced head, offset cruciform, offset cruciform-ribbed and dovetail slot, 95 ksi fus
Special Features: tensile strength 3200 lbs min.
Material: titanium alloy uns r56400 overall
Material Document And Classification: ams4928 national std single material response or ams4967 national std single material response 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
NAS1581K4R14X	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-666-4638?

The FSCG of the NSN 5305-01-666-4638 is 5305

Does the NSN 5305-01-666-4638 have a Schedule B code assigned?

Yes, the Schedule B code is 8108908000

Does NSN 5305-01-666-4638 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 5305-01-666-4638 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-666-4638 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 5305-01-666-4638 was assigned to the Federal Catalog?

It was assigned 8 years ago, on Thu, Sep 7, 2017