5306-01-266-8576

Find complete technical information, availability, and procurement data for: 5306-01-266-8576
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-266-8576

Item Name Code

27851

Assigment Date

10/31/1987 (38 years ago)

right-hand thread direction, double hexagon extended washer head style, 3a thread class, 0.460 inches minimum and 0.510 inches maximum thread length, 0.845 inches minimum and 0.875 inches maximum 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: 0.460 inches minimum and 0.510 inches maximum
Fastener Length: 0.845 inches minimum and 0.875 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.290 inches minimum and 0.310 inches maximum
Width Between Flats: 0.306 inches minimum and 0.315 inches maximum
Extended Washer Diameter: 0.360 inches nominal
Extended Washer Thickness: 0.059 inches minimum and 0.079 inches maximum
Hole Diameter: 0.032 inches minimum and 0.042 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.365 inches minimum and 0.385 inches maximum
Hole Quantity: 4
Hole Type: drilled
Thread Quantity Per Inch: 28
Hole Configuration Style: double hexagon longitudinal hole
Surface Finish: 16.0 microinches threads
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Material: titanium alloy uns r56400 overall
Material Document And Classification: ams4967 assn std single material response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1271 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
NAS1271H6	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-266-8576?

The FSCG of the NSN 5306-01-266-8576 is 5306

Does the NSN 5306-01-266-8576 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5306-01-266-8576 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 5306-01-266-8576 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-266-8576 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 5306-01-266-8576 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Oct 31, 1987