5305-00-857-6173

Find complete technical information, availability, and procurement data for: 5305-00-857-6173
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-857-6173

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

3a thread class, right-hand thread direction, flat chamfer head style, 0.138 inches minimum and 0.188 inches maximum thread length, 0.156 inches minimum and 0.188 inches maximum fastener 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: 0.138 inches minimum and 0.188 inches maximum
Fastener Length: 0.156 inches minimum and 0.188 inches maximum
Head Style: flat chamfer
Head Diameter: 0.178 inches minimum and 0.183 inches maximum
Head Height: 0.059 inches minimum and 0.069 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 42.0 rockwell c maximum
Screw Material: steel comp e4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4037
Screw Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6098 mil spec 3rd material response or mil-s-8503 mil spec 4th material response or mil-s-5626 mil spec 5th material response or ams 6300 assn std 6th material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response
Thread Series Designator: unc

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
NAS1101-04-3	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-857-6173?

The FSCG of the NSN 5305-00-857-6173 is 5305

Does the NSN 5305-00-857-6173 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-857-6173 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 5305-00-857-6173 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-857-6173 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 5305-00-857-6173 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962