NAS1581C4R9P

View detailed technical data, stock status, and sourcing information for: NAS1581C4R9P
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-661-6034

Item Name Code

29294

Assigment Date

03/09/2017 (9 years ago)

0.369 inches minimum and 0.419 inches maximum thread length, 0.941 inches minimum and 0.971 inches maximum fastener length, 3a thread class, flat countersunk head style, 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: 0.369 inches minimum and 0.419 inches maximum
Fastener Length: 0.941 inches minimum and 0.971 inches maximum
Head Style: flat countersunk
Head Diameter: 0.350 inches minimum and 0.399 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.552 inches minimum and 0.572 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
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
NAS1581C4R9P	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-661-6034?

The FSCG of the NSN 5305-01-661-6034 is 5305

Does NSN 5305-01-661-6034 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 5305-01-661-6034 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-661-6034 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 5305-01-661-6034 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Thu, Mar 9, 2017