5305-01-081-0129

Find complete technical information, availability, and procurement data for: 5305-01-081-0129
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-081-0129

Item Name Code

18257

Assigment Date

08/07/1979 (46 years ago)

right-hand thread direction, 1.816 inches minimum and 1.876 inches maximum thread length, 3a thread class, 4.581 inches minimum and 4.611 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: 3a
Thread Direction: right-hand
Thread Length: 1.816 inches minimum and 1.876 inches maximum
Fastener Length: 4.581 inches minimum and 4.611 inches maximum
Head Style: hexagon
Head Height: 0.656 inches minimum and 0.672 inches maximum
Width Between Flats: 1.801 inches minimum and 1.815 inches maximum
Shank Unthreaded Hole Diameter: 0.141 inches minimum and 0.151 inches maximum first hole
Nominal Thread Diameter: 1.250 inches
Thread Quantity Per Inch: 12
Distance From Head Largest Bearing Surface To Shank Hole Center: 4.115 inches minimum and 4.135 inches maximum first hole
Part Name Assigned By Controlling Agency: navy special project
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std 1st material response or ams 5737 assn std 1st material response or ams 5733 assn std 2nd 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
Specification/Standard Data: 80205-nas1020 professional/industrial association standard

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
NAS1020-44	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-081-0129?

The FSCG of the NSN 5305-01-081-0129 is 5305

Does the NSN 5305-01-081-0129 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-081-0129 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 5305-01-081-0129 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-081-0129 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 5305-01-081-0129 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Tue, Aug 7, 1979