2660626

View detailed technical data, stock status, and sourcing information for: 2660626
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-613-4939

Item Name Code

06665

Assigment Date

01/01/1963 (63 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

0.562 inches minimum thread length, 1.500 inches nominal inside distance between shanks, right-hand thread direction, 2.531 inches nominal distance from inside center of bend to bolt end, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.562 inches minimum
Distance From Inside Center Of Bend To Bolt End: 2.531 inches nominal
Inside Distance Between Shanks: 1.500 inches nominal
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 125000 pounds per square inch
Material: steel comp 4130 overall
Surface Treatment: cadmium overall
Style Designator: round bend
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
2660626	U Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-613-4939?

The FSCG of the NSN 5306-00-613-4939 is 5306

Does the NSN 5306-00-613-4939 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-613-4939 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 5306-00-613-4939 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-613-4939 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 5306-00-613-4939 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963