5306-00-003-4109

Close Tolerance Bolt

Find complete technical information, availability, and procurement data for NSN 5306-00-003-4109 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

5306-00-003-4109

Item Name Code

27851

Assigment Date

05/14/1972 (54 years ago)

An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

3a thread class, 2.228 inches minimum and 2.248 inches maximum fastener length, dished hexagon head style, right-hand thread direction, 0.311 inches minimum and 0.378 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: 0.311 inches minimum and 0.378 inches maximum
Fastener Length: 2.228 inches minimum and 2.248 inches maximum
Head Style: dished hexagon
Head Height: 0.157 inches minimum and 0.172 inches maximum
Width Between Flats: 0.492 inches minimum and 0.502 inches maximum
Grip Diameter: 0.3108 inches minimum and 0.3117 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.750 inches minimum and 1.766 inches maximum
Thread Quantity Per Inch: 24
Hardness Rating: 36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.113 inches minimum and 2.143 inches maximum first hole
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Special Features: w/retaining element on shank
Material: steel overall
Material Document And Classification: mil-b-83050 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec all treatment responses 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
106467-5-28	Close Tolerance Bolt
AC194-5-28	Close Tolerance Bolt
CA4510-5-28	Close Tolerance Bolt
MS27576-5-28	Close Tolerance Bolt
SS27576-5-28	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 5306-00-003-4109

What is the FSCG of the NSN 5306-00-003-4109?

The FSCG of the NSN 5306-00-003-4109 is 5306

Does the NSN 5306-00-003-4109 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-003-4109 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 5306-00-003-4109 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-003-4109 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 5306-00-003-4109 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, May 14, 1972