5305-01-321-6221

Find complete technical information, availability, and procurement data for: 5305-01-321-6221
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-321-6221

Item Name Code

06657

Assigment Date

06/20/1990 (36 years ago)

3a thread class, pan head style, 0.276 inches nominal thread length, right-hand thread direction, 1.636 inches minimum and 1.666 inches maximum fastener length

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: 0.276 inches nominal
Fastener Length: 1.636 inches minimum and 1.666 inches maximum
Head Style: pan
Head Diameter: 0.357 inches minimum and 0.373 inches maximum
Head Height: 0.122 inches minimum and 0.133 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Screw Material: steel comp 4140 or steel comp e4340 or steel comp 8740
Screw Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec single treatment response
Bearing Surface Of Head Surface Finish: 32.0 microinches
Shank Surface Finish: 32.0 microinches
Thread Surface Finish: 32.0 microinches
Special Features: drill shank hole,0.107 in. min,0.127 in. max lg from end; 0.070 in. min,0.080 max dia
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1633 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
NAS1123-22D	Machine Screw
NAS1633-22D	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-321-6221?

The FSCG of the NSN 5305-01-321-6221 is 5305

Does the NSN 5305-01-321-6221 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-321-6221 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 5305-01-321-6221 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-321-6221 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 5305-01-321-6221 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Jun 20, 1990