12322529

View detailed technical data, stock status, and sourcing information for: 12322529
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-178-5497

Item Name Code

18257

Assigment Date

05/07/1984 (42 years ago)

An insulator that is essentially thin and flat, with one through hole centrally located. The general shape may vary by the addition of features such as beveled edges, indented surfaces, through hole keys, and/or peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. Excludes:items with more than one hole. See also insulator, disk; insulator, bead; insulator, bushing; and insulator, plate

0.500 inches maximum thread length, 2a thread class, right-hand thread direction, 0.500 inches maximum 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: 0.500 inches maximum
Fastener Length: 0.500 inches maximum
Head Style: hexagon
Head Height: 0.272 inches minimum and 0.291 inches maximum
Width Between Flats: 0.612 inches minimum and 0.625 inches maximum
Hole Diameter: 0.060 inches minimum and 0.068 inches maximum
Nominal Thread Diameter: 0.438 inches
Hole Quantity: 1
Hole Type: drilled
Thread Quantity Per Inch: 14
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 23.0 rockwell c minimum and 32.0 rockwell c maximum overall
Minimum Yield Strength: 85000 pounds per square inch
Hole Configuration Style: hexagon flats
Material: steel overall
Material Document And Classification: sae grade 5 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response 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
12322529	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-178-5497?

The FSCG of the NSN 5305-01-178-5497 is 5305

Does the NSN 5305-01-178-5497 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-178-5497 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 5305-01-178-5497 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-178-5497 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 5305-01-178-5497 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, May 7, 1984