5306-01-322-7318

Find complete technical information, availability, and procurement data for: 5306-01-322-7318
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-322-7318

Item Name Code

27851

Assigment Date

07/13/1990 (36 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

double hexagon w/hole head style, right-hand thread direction, 3a thread class, 1.188 inches nominal fastener length, 0.626 inches nominal 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: 3a
Thread Direction: right-hand
Thread Length: 0.626 inches nominal
Fastener Length: 1.188 inches nominal
Head Style: double hexagon w/hole
Head Height: 0.330 inches nominal
Width Between Flats: 0.305 inches minimum and 0.313 inches maximum
Extended Washer Diameter: 0.438 inches nominal
Extended Washer Thickness: 0.050 inches minimum and 0.060 inches maximum
Grip Diameter: 0.2494 inches minimum and 0.2499 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.562 inches nominal
Thread Quantity Per Inch: 28
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response overall
Thread Series Designator: unjf

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
5306PL1499440	Close Tolerance Bolt
MS9111-11	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-322-7318?

The FSCG of the NSN 5306-01-322-7318 is 5306

Does the NSN 5306-01-322-7318 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-322-7318 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 5306-01-322-7318 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-322-7318 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 5306-01-322-7318 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Jul 13, 1990