5305-01-074-6839

Find complete technical information, availability, and procurement data for: 5305-01-074-6839
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-074-6839

Item Name Code

16282

Assigment Date

04/06/1979 (47 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

right-hand thread direction, 0.220 inches minimum and 0.250 inches maximum fastener length, 3a thread class, flat chamfer head style, 0.137 inches minimum and 0.250 inches maximum 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: 0.137 inches minimum and 0.250 inches maximum
Fastener Length: 0.220 inches minimum and 0.250 inches maximum
Head Style: flat chamfer
Head Diameter: 0.303 inches minimum and 0.312 inches maximum
Head Height: 0.185 inches minimum and 0.190 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.159 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 38.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 155000 pounds per square inch
Surface Finish: 32.0 microinches threads
Surface Finish: 63.0 microinches bearing surface of head
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 fed spec single treatment response overall
Thread Series Designator: unjc
Specification/Standard Data: 80205-nas1352 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
NAS1352-3-4	Socket Head Cap Screw
PWA51630-5	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-074-6839?

The FSCG of the NSN 5305-01-074-6839 is 5305

Does the NSN 5305-01-074-6839 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-074-6839 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 5305-01-074-6839 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-074-6839 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 5305-01-074-6839 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Fri, Apr 6, 1979