5305-01-239-0643

Find complete technical information, availability, and procurement data for: 5305-01-239-0643
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-239-0643

Item Name Code

22846

Assigment Date

08/25/1986 (39 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

flat countersunk undercut head style, right-hand thread direction, 0.443 inches minimum and 0.510 inches maximum thread length, 3a thread class, 1.515 inches minimum and 1.562 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: 0.443 inches minimum and 0.510 inches maximum
Fastener Length: 1.515 inches minimum and 1.562 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.501 inches minimum and 0.506 inches maximum
Head Height: 0.058 inches minimum and 0.060 inches maximum
Shoulder Diameter: 0.2802 inches minimum and 0.2807 inches maximum first shoulder
Shoulder Length: 1.052 inches minimum and 1.072 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Shoulder Shape: round first shoulder
Special Features: furnish with one o-ring
Material: steel comp xm-13 overall
Material Document And Classification: ams5629 assn std single material response overall
Surface Treatment: passivate 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
11879C4-17A	Shoulder Screw
3M902C4-17A	Shoulder Screw
HT4020-4-17AY	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-239-0643?

The FSCG of the NSN 5305-01-239-0643 is 5305

Does the NSN 5305-01-239-0643 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-239-0643 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 5305-01-239-0643 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-239-0643 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 5305-01-239-0643 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Mon, Aug 25, 1986