5305-00-850-6255

Find complete technical information, availability, and procurement data for: 5305-00-850-6255
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-850-6255

Item Name Code

22846

Assigment Date

01/01/1960 (66 years ago)

0.422 inches minimum and 0.572 inches maximum thread length, flat countersunk head style, 2.140 inches minimum and 2.187 inches maximum fastener 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: 0.422 inches minimum and 0.572 inches maximum
Fastener Length: 2.140 inches minimum and 2.187 inches maximum
Head Style: flat countersunk
Head Diameter: 0.629 inches minimum and 0.633 inches maximum
Shoulder Diameter: 0.327 inches minimum and 0.328 inches maximum first shoulder
Shoulder Length: 1.493 inches minimum and 1.515 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Shoulder Shape: round first shoulder
Material: steel comp e4340 or steel comp 4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4037 or steel comp 4130 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator: unf

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
NAS1705-26	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-850-6255?

The FSCG of the NSN 5305-00-850-6255 is 5305

Does the NSN 5305-00-850-6255 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-850-6255 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 5305-00-850-6255 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-850-6255 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 5305-00-850-6255 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960