5305-01-255-6541

Find complete technical information, availability, and procurement data for: 5305-01-255-6541
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-255-6541

Item Name Code

16282

Assigment Date

05/23/1987 (39 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.

0.786 inches minimum and 0.816 inches maximum fastener length, pan no. 2 head style, right-hand thread direction, 3a thread class, 0.330 inches minimum and 0.451 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: 0.330 inches minimum and 0.451 inches maximum
Fastener Length: 0.786 inches minimum and 0.816 inches maximum
Head Style: pan no. 2
Head Diameter: 0.477 inches minimum and 0.492 inches maximum
Head Height: 0.140 inches minimum and 0.150 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches minimum and 0.190 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 140000 pounds per square inch
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum overall
Minimum Yield Strength: 85000 pounds per square inch
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: iron alloy 660 overall
Material Document And Classification: ams5731 assn std single material response or ams5732 assn std single material response or 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

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
LD111-0058-0406	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-255-6541?

The FSCG of the NSN 5305-01-255-6541 is 5305

Does the NSN 5305-01-255-6541 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-255-6541 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 5305-01-255-6541 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-255-6541 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 5305-01-255-6541 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sat, May 23, 1987