845-45588709ITEM25

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-077-3885

Item Name Code

06666

Assigment Date

05/23/1979 (47 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.220 inches nominal thread length, right-hand thread direction, 3a thread class, flat chamfer head style, 0.660 inches nominal fastener 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: 3a
Thread Direction: right-hand
Thread Length: 0.220 inches nominal
Fastener Length: 0.660 inches nominal
Head Style: flat chamfer
Head Diameter: 0.262 inches minimum and 0.270 inches maximum
Head Height: 0.159 inches minimum and 0.164 inches maximum
First Diameter From Head: 0.120 inches minimum and 0.125 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.440 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.164 inches
Width Across Flats: 0.120 inches minimum and 0.125 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 80000 pounds per square inch
Externally Relieved Body Diameter Quantity: 1
Material: nickel alloy overall
Material Document And Classification: qq-n-281 fed spec single material response overall
Surface Treatment: oxide overall
Surface Treatment Document And Classification: mil-f-495 mil 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
2640-682-05 ITEM 25	Internal Wrenching Bolt
4687720-0025	Internal Wrenching Bolt
845-45588709ITEM25	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-077-3885?

The FSCG of the NSN 5306-01-077-3885 is 5306

Does the NSN 5306-01-077-3885 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5306-01-077-3885 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 5306-01-077-3885 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-077-3885 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 5306-01-077-3885 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Wed, May 23, 1979