NAS1580A3R23

View detailed technical data, stock status, and sourcing information for: NAS1580A3R23
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-385-5891

Item Name Code

29294

Assigment Date

01/14/1994 (32 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also attenuator, fixed and resistor, fixed, composition. Excludes:carbon composition type resistors.

3a thread class, flat countersunk head style, 0.363 inches nominal thread length, 1.781 inches minimum and 1.816 inches maximum fastener length, 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: 0.363 inches nominal
Fastener Length: 1.781 inches minimum and 1.816 inches maximum
Head Style: flat countersunk
Head Diameter: 0.339 inches minimum and 0.381 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.190 inches
Grip Length: 1.428 inches minimum and 1.448 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5652 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, type 2, class 2 fed spec all treatment responses 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
NAS1580A3R23	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-385-5891?

The FSCG of the NSN 5305-01-385-5891 is 5305

Does the NSN 5305-01-385-5891 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-385-5891 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 5305-01-385-5891 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-385-5891 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 5305-01-385-5891 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Jan 14, 1994