5305-01-434-8143

Find complete technical information, availability, and procurement data for: 5305-01-434-8143
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-434-8143

Item Name Code

18257

Assigment Date

08/08/1996 (30 years ago)

A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.

right-hand thread direction, 2a thread class, 1.750 inches nominal thread length, 3.250 inches nominal fastener length, hexagon head style

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: 1.750 inches nominal
Fastener Length: 3.250 inches nominal
Head Style: hexagon
Head Height: 0.455 inches minimum and 0.483 inches maximum
Width Between Flats: 1.100 inches minimum and 1.125 inches maximum
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 10
Minimum Tensile Strength: 110000 pounds per square inch
Hardness Rating: 80.0 rockwell c minimum overall
Material: nickel alloy 400 overall
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
803-5001004-X1XX-21	Hexagon Head Cap Screw
803-5001004-X3X1-21	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-434-8143?

The FSCG of the NSN 5305-01-434-8143 is 5305

Does the NSN 5305-01-434-8143 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-434-8143 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 5305-01-434-8143 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-434-8143 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 5305-01-434-8143 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, Aug 8, 1996