5305-01-185-4550

Find complete technical information, availability, and procurement data for: 5305-01-185-4550
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-185-4550

Item Name Code

29294

Assigment Date

07/29/1984 (41 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. All or part of the unthreaded section has a cross-sectional diameter greater than the nominal stud size plus 0.020 inches (0.508 mm). It may be thread relieved. See also stud, locked in.

0.445 inches minimum and 0.557 inches maximum thread length, right-hand thread direction, 0.901 inches minimum and 0.922 inches maximum fastener length, flat countersunk head style, 3a thread class

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: 0.445 inches minimum and 0.557 inches maximum
Fastener Length: 0.901 inches minimum and 0.922 inches maximum
Head Style: flat countersunk
Head Diameter: 0.454 inches minimum and 0.508 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.365 inches minimum and 0.385 inches maximum
Width Across Flats: 0.157 inches minimum and 0.159 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 180000 pounds per square inch
Countersink Angle: 100.0 degrees minimum
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: ams5732 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
CA2193-4-06	Close Tolerance Screw
FIT01-0002-4006	Close Tolerance Screw
LE111-0002-4006	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-185-4550?

The FSCG of the NSN 5305-01-185-4550 is 5305

Does the NSN 5305-01-185-4550 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-185-4550 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 5305-01-185-4550 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-185-4550 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 5305-01-185-4550 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Sun, Jul 29, 1984