27586R1

View detailed technical data, stock status, and sourcing information for: 27586R1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-129-9787

Item Name Code

01847

Assigment Date

04/15/1982 (44 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

double hexagon extended washer head style, 0.639 inches minimum and 0.750 inches maximum thread length, 2a thread class, right-hand thread direction, 0.750 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: 2a
Thread Direction: right-hand
Thread Length: 0.639 inches minimum and 0.750 inches maximum
Fastener Length: 0.750 inches nominal
Head Style: double hexagon extended washer
Head Height: 0.312 inches maximum
Width Between Flats: 0.306 inches minimum and 0.315 inches maximum
Extended Washer Diameter: 0.457 inches minimum and 0.469 inches maximum
Extended Washer Thickness: 0.084 inches minimum
Nominal Thread Diameter: 0.312 inches
Features Provided: finished head
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 33.0 rockwell c minimum and 43.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Material: steel 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
166-24	Machine Bolt
27586R1	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-129-9787?

The FSCG of the NSN 5306-01-129-9787 is 5306

Does the NSN 5306-01-129-9787 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-129-9787 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 5306-01-129-9787 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-129-9787 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 5306-01-129-9787 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Apr 15, 1982