5306-01-078-5979

Close Tolerance Bolt

Find complete technical information, availability, and procurement data for NSN 5306-01-078-5979 All details are based on official government and industry records to support accurate and compliant procurement.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-078-5979

Item Name Code

27851

Assigment Date

06/16/1979 (47 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

double hexagon w/hole head style, 1.911 inches minimum and 1.941 inches maximum fastener length, right-hand thread direction, 3a thread class, 0.536 inches minimum and 0.566 inches maximum thread length

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.536 inches minimum and 0.566 inches maximum
Fastener Length: 1.911 inches minimum and 1.941 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.348 inches nominal
Width Between Flats: 0.367 inches minimum and 0.376 inches maximum
Extended Washer Diameter: 0.521 inches minimum and 0.531 inches maximum
Extended Washer Thickness: 0.082 inches nominal
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.375 inches nominal
Thread Quantity Per Inch: 24
Hardness Rating: 50.0 rockwell c maximum overall
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 ty 1 or ty 2 or ty 3 fed spec single treatment response overall
Thread Series Designator: unjf

Related Parts & Specifications

This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.

Part Number	Name
642AS0735-5	Close Tolerance Bolt
74328-5-22	Close Tolerance Bolt
AIC752-5-22	Close Tolerance Bolt
BM3326-5-22	Close Tolerance Bolt
GS1030-5-22	Close Tolerance Bolt
MB84-5-22	Close Tolerance Bolt
S11-1059-5-22	Close Tolerance Bolt
S371-5-22	Close Tolerance Bolt
ST3M571-5-22	Close Tolerance Bolt
VAL23033-5-22	Close Tolerance Bolt
VS3060-5-22	Close Tolerance Bolt

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
Demilitarization
Criticality
Federal Item Identification Guide
Precious Metals Indicator
Pseudo Item Name Code
Hazardous Material Indicator
Schedule B Code

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
National Motor Freight Classification Item Number
National Motor Freight Classification Sub-Item Number
Uniform Freight Classification Item Number
National Motor Freight Class Rating
Water Commodity
Type of Cargo
Special Hand
Air Dimension
Air Commodity
National Motor Freight Description

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 5306-01-078-5979

What is the FSCG of the NSN 5306-01-078-5979?

The FSCG of the NSN 5306-01-078-5979 is 5306

Does the NSN 5306-01-078-5979 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-078-5979 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 5306-01-078-5979 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-078-5979 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 5306-01-078-5979 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Sat, Jun 16, 1979