NAS1581K4T8Y

View detailed technical data, stock status, and sourcing information for: NAS1581K4T8Y
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-694-8756

Item Name Code

29294

Assigment Date

04/30/2021 (5 years ago)

A self-contained item which permits the transfer of information between various types of computer support equipment and computers which would not otherwise be compatible. Excludes:modem, communication; expander card, computer, automatic data processing; circuit card assembly; and cable assembly (as modified).

0.888 inches minimum and 0.918 inches maximum fastener length, flat countersunk head style, 0.3982 inches minimum and 0.3994 inches maximum thread length, 3a thread class, 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: 0.3982 inches minimum and 0.3994 inches maximum
Fastener Length: 0.888 inches minimum and 0.918 inches maximum
Head Style: flat countersunk
Head Diameter: 0.350 inches minimum and 0.399 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: b1-bacft
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.490 inches minimum and 0.510 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
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Part Name Assigned By Controlling Agency: screw,close tolerance
Material: titanium alloy overall
Material Document And Classification: ams4967 assn std single material response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1581 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
NAS1581K4T8Y	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-694-8756?

The FSCG of the NSN 5305-01-694-8756 is 5305

Does the NSN 5305-01-694-8756 have a Schedule B code assigned?

Yes, the Schedule B code is 8108908000

Does NSN 5305-01-694-8756 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 5305-01-694-8756 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-694-8756 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 5305-01-694-8756 was assigned to the Federal Catalog?

It was assigned 5 years ago, on Fri, Apr 30, 2021