NAS1581V4T7

View detailed technical data, stock status, and sourcing information for: NAS1581V4T7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-059-0225

Item Name Code

29294

Assigment Date

04/06/1978 (48 years ago)

0.406 inches maximum thread length, right-hand thread direction, 3a thread class, 0.826 inches minimum and 0.856 inches maximum fastener length, flat countersunk head style

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: 0.406 inches maximum
Fastener Length: 0.826 inches minimum and 0.856 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: torque-set ribbed
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.428 inches minimum and 0.448 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 bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: titanium alloy uns r54520 overall
Material Document And Classification: ams 4928 assn std single material response or ams 4967 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
5305PL0783122	Close Tolerance Screw
NAS1581K4T7	Close Tolerance Screw
NAS1581V4T7	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-059-0225?

The FSCG of the NSN 5305-01-059-0225 is 5305

Does the NSN 5305-01-059-0225 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-01-059-0225 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 5305-01-059-0225 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-059-0225 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 5305-01-059-0225 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Apr 6, 1978