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.

flat countersunk head style, 0.403 inches nominal thread length, right-hand thread direction, 1.263 inches minimum and 1.293 inches maximum fastener length, 3a thread class

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