1-140-168-02

View detailed technical data, stock status, and sourcing information for: 1-140-168-02
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-948-3240

Item Name Code

06675

Assigment Date

04/06/1966 (60 years ago)

An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.

2a thread class, right-hand thread direction, 2.950 inches minimum and 2.970 inches maximum fastener length, hexagon head style, 0.550 inches minimum and 0.610 inches maximum thread 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: 2a
Thread Direction: right-hand
Thread Length: 0.550 inches minimum and 0.610 inches maximum
Fastener Length: 2.950 inches minimum and 2.970 inches maximum
Head Style: hexagon
Head Height: 0.180 inches minimum and 0.200 inches maximum
Width Between Flats: 0.492 inches minimum and 0.502 inches maximum
First Diameter From Head: 0.245 inches minimum and 0.255 inches maximum
Second Diameter From Head: 0.316 inches minimum and 0.319 inches maximum
Third Diameter From Head: 0.245 inches minimum and 0.255 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 1.250 inches minimum and 1.290 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 1.520 inches minimum and 1.560 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Third Diameter: 2.360 inches minimum and 2.400 inches maximum
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Hardness Rating: 33.0 rockwell c minimum and 35.5 rockwell c maximum overall
Externally Relieved Body Diameter Quantity: 3
Material: steel comp 4140 overall
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams 2410 assn std single treatment response overall
Thread Series Designator: unf

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
1-140-168-02	Externally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-948-3240?

The FSCG of the NSN 5306-00-948-3240 is 5306

Does the NSN 5306-00-948-3240 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-948-3240 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 5306-00-948-3240 contain precious materials?

Item contains silver.

Does NSN 5306-00-948-3240 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 5306-00-948-3240 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Apr 6, 1966