NAS1581K3T3S

View detailed technical data, stock status, and sourcing information for: NAS1581K3T3S
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-717-0921

Item Name Code

15903

Assigment Date

12/28/2023 (2 years ago)

A clamp designed to hold an item in position, alignment or in close proximity by rigidly gripping the projecting rim, ridge, collar or edge of the item. A lockwasher, bolt, screw or the like may be a part of the item of supply.

0.313 inches nominal thread length, right-hand thread direction, 0.456 inches minimum and 0.515 inches maximum fastener length, flat countersunk head style, 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: 0.313 inches nominal
Fastener Length: 0.456 inches minimum and 0.515 inches maximum
Head Style: flat countersunk
Head Diameter: 0.2578 inches minimum and 0.3047 inches maximum
Head Height: 0.049 inches minimum and 0.078 inches maximum
Grip Diameter: 0.1890 inches minimum and 0.1895 inches maximum
End Item Identification: c-295 cargo-transport airplane
Nominal Thread Diameter: 0.1900 inches
Grip Length: 0.187 inches nominal
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: bolt, shear, 100 degrees flush reduced head
Special Features: total length: 0.549 inches nominal (0.534 inches minimum, 0.564 inches maximum)
Material: titanium alloy uns r56400 overall
Surface Treatment: aluminum 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
NAS1581K3T3S	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-717-0921?

The FSCG of the NSN 5306-01-717-0921 is 5306

Does the NSN 5306-01-717-0921 have a Schedule B code assigned?

Yes, the Schedule B code is 8108908000

Does NSN 5306-01-717-0921 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 5306-01-717-0921 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-717-0921 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 5306-01-717-0921 was assigned to the Federal Catalog?

It was assigned 2 years ago, on Thu, Dec 28, 2023