5305-01-221-7732

Find complete technical information, availability, and procurement data for: 5305-01-221-7732
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-221-7732

Item Name Code

06657

Assigment Date

12/03/1985 (40 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.531 inches minimum and 0.562 inches maximum fastener length, 3a thread class, flat countersunk head style, 0.354 inches minimum and 0.456 inches maximum thread 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: 0.354 inches minimum and 0.456 inches maximum
Fastener Length: 0.531 inches minimum and 0.562 inches maximum
Head Style: flat countersunk
Head Diameter: 0.442 inches minimum and 0.507 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams5737 assn std single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1102 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
NAS1102E4-9	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-221-7732?

The FSCG of the NSN 5305-01-221-7732 is 5305

Does the NSN 5305-01-221-7732 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-221-7732 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 5305-01-221-7732 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-221-7732 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 5305-01-221-7732 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Dec 3, 1985