5305-01-304-0744

Find complete technical information, availability, and procurement data for: 5305-01-304-0744
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-304-0744

Item Name Code

06657

Assigment Date

07/11/1989 (37 years ago)

A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.

flat countersunk head style, right-hand thread direction, 1.136 inches minimum and 1.166 inches maximum fastener length, 3a thread class, 0.339 inches nominal thread 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: 0.339 inches nominal
Fastener Length: 1.136 inches minimum and 1.166 inches maximum
Head Style: flat countersunk
Head Diameter: 0.294 inches minimum and 0.332 inches maximum
Internal Drive Style: torque-set ribbed
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: navy special project
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5737 assn std single material response or ams 5732 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: unjc
Specification/Standard Data: 80205-nas1221 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
NAS1221R08E13	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-304-0744?

The FSCG of the NSN 5305-01-304-0744 is 5305

Does the NSN 5305-01-304-0744 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-304-0744 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 5305-01-304-0744 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-304-0744 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 5305-01-304-0744 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Tue, Jul 11, 1989