5305-01-458-1680

Find complete technical information, availability, and procurement data for: 5305-01-458-1680
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-458-1680

Item Name Code

29294

Assigment Date

08/15/1998 (27 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

flat countersunk head style, 1.688 inches minimum and 1.718 inches maximum fastener length, 0.391 inches minimum thread length, 3a thread class, 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: 0.391 inches minimum
Fastener Length: 1.688 inches minimum and 1.718 inches maximum
Head Style: flat countersunk
Head Diameter: 0.752 inches minimum and 0.762 inches maximum
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.302 inches minimum and 1.322 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches threads
Material: iron alloy 660 overall
Material Document And Classification: ams5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1156 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
NAS1156E21	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-458-1680?

The FSCG of the NSN 5305-01-458-1680 is 5305

Does the NSN 5305-01-458-1680 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-458-1680 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 5305-01-458-1680 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-458-1680 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 5305-01-458-1680 was assigned to the Federal Catalog?

It was assigned 27 years ago, on Sat, Aug 15, 1998