1. Home /
  2. Catalog /
  3. Bolts /
  4. 5306-00-003-0645

5306-00-003-0645

Close Tolerance Bolt

Find complete technical information, availability, and procurement data for NSN 5306-00-003-0645 All details are based on official government and industry records to support accurate and compliant procurement.

5306-00-003-0645
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-003-0645
Item Name Code
27851
Assigment Date
05/11/1972 (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.

dished hexagon head style, 7.103 inches minimum and 7.123 inches maximum fastener length, 0.311 inches minimum and 0.378 inches maximum thread length, 3a thread class, right-hand thread direction

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
7.103 inches minimum and 7.123 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
6.625 inches minimum and 6.641 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
6.988 inches minimum and 7.018 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
106467-5-106 Close Tolerance Bolt
AS194-5-1-6 Close Tolerance Bolt
CA4510-5-106 Close Tolerance Bolt
MS27576-5-106 Close Tolerance Bolt
MS27576-5-106R 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
1 - Full descriptive item identification
Demilitarization
A - 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.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A003B0
Precious Metals Indicator
U - Precious metal content is unknown
Pseudo Item Name Code
0027851
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
7318152000

Freight Information

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

Major Organizational Entity
KZ
National Motor Freight Classification Item Number
093486
National Motor Freight Classification Sub-Item Number
Z
Uniform Freight Classification Item Number
48950
National Motor Freight Class Rating
W - Rating variable
Water Commodity
573 - Bolts or nuts (iron or steel),(less than 35 feet)
Type of Cargo
Z - No special type of cargo code applicable
Special Hand
9 - Other or no special handling required (sh)
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
Air Commodity
BZ -
National Motor Freight Description
bolts,nuts or screws, noi (sub 3)

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 5306-00-003-0645

What is the FSCG of the NSN 5306-00-003-0645?
The FSCG of the NSN 5306-00-003-0645 is 5306
Does the NSN 5306-00-003-0645 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-003-0645 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 5306-00-003-0645 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-003-0645 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 5306-00-003-0645 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Thu, May 11, 1972

Need Consumables?

Running low on essential supplies? Explore our extensive catalog of high-quality consumables designed to keep your operations on track.

Electrical Wires

Recommended for You

Discover a selection of other high-demand NSN components from our catalog. These featured parts are frequently sourced by procurement teams across defense, aerospace, and industrial sectors.

Price & Availability

Fill out the form to get accurate pricing, lead time, and stock details from our NSN specialists:

FREE

Aviation Suppliers Association Member AS9120-ISO9001 Certification

Popular Parts

Browse our top-performing parts, selected based on customer demand and procurement frequency. All listings include up-to-date specs, availability, and condition:

5962-8877201CB
5962-01-311-7563
Linear Microcircuit
5962-8877201CX
5962-01-311-7563
Linear Microcircuit
5962-88774
5962-01-388-2653
Digital Microcircuit
5962-8877401CA
5962-01-388-2653
Digital Microcircuit
5962-8877401CX
5962-01-388-2653
Digital Microcircuit
5962-88775
5962-01-361-6484
Digital Microcircuit
5962-8877501LA
5962-01-361-6484
Digital Microcircuit
5962-8877501LB
5962-01-361-6484
Digital Microcircuit
5962-8877501LX
5962-01-361-6484
Digital Microcircuit
5962-88775023A
5962-01-446-9765
Digital Microcircuit
5962-8877502LA
5962-01-399-2519
Digital Microcircuit
5962-887801UA
5962-01-500-1247
Digital Microcircuit
5962-89436
5962-01-300-3785
Digital Microcircuit
5962-8943601MRA
5962-01-300-3785
Digital Microcircuit
5962-89438
5962-01-420-7770
Digital Microcircuit