NAS1790-8-50A

View detailed technical data, stock status, and sourcing information for: NAS1790-8-50A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-621-8198

Item Name Code

29294

Assigment Date

09/18/2013 (12 years ago)

A definite continuous length of cable,special purpose,electrical, having one or more ends processed or terminated in fittings which provide for connectionn to other items. For items which the rated working is 300 volts or more, see: cable assembly,power,electrical. Excludes items having branches or forks. Excludes: lead,test and cable and conduit assembly,electrical.

3a thread class, 0.737 inches nominal thread length, 3.860 inches nominal fastener length, 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: 0.737 inches nominal
Fastener Length: 3.860 inches nominal
Head Style: flat countersunk
Head Diameter: 1.014 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.500 inches
Grip Length: 3.125 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response or ams 5853 assn std single material response overall
Surface Treatment: aluminum overall
Surface Treatment Document And Classification: nas 4006 assn std single treatment response 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
NAS1790-8-50A	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-621-8198?

The FSCG of the NSN 5305-01-621-8198 is 5305

Does the NSN 5305-01-621-8198 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-621-8198 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 5305-01-621-8198 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-621-8198 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 5305-01-621-8198 was assigned to the Federal Catalog?

It was assigned 12 years ago, on Wed, Sep 18, 2013