5305-01-159-8543

Find complete technical information, availability, and procurement data for: 5305-01-159-8543
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-159-8543

Item Name Code

06657

Assigment Date

08/14/1983 (42 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.180 inches minimum and 0.250 inches maximum thread length, 0.230 inches minimum and 0.250 inches maximum fastener length, pan head style, right-hand thread direction, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 0.180 inches minimum and 0.250 inches maximum
Fastener Length: 0.230 inches minimum and 0.250 inches maximum
Head Style: pan
Head Diameter: 0.205 inches minimum and 0.219 inches maximum
Head Height: 0.070 inches minimum and 0.080 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Criticality Code Justification: zzzy
Screw Material: copper alloy
Special Test Features: special quality control testing
Test Data Document: "81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unc
Reference Number Differentiating Characteristics: as differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination

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
904E180 ITEM 54	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-159-8543?

The FSCG of the NSN 5305-01-159-8543 is 5305

Does the NSN 5305-01-159-8543 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-01-159-8543 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 5305-01-159-8543 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-159-8543 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 5305-01-159-8543 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sun, Aug 14, 1983