5306-00-003-0644
Close Tolerance Bolt
Find complete technical information, availability, and procurement data for NSN 5306-00-003-0644 All details are based on official government and industry records to support accurate and compliant procurement.
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, 2.103 inches minimum and 2.123 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
- 2.103 inches minimum and 2.123 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
- 1.625 inches minimum and 1.641 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
- 1.988 inches minimum and 2.018 inches maximum first hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Special Features
- detent ring in shank
- Material
- steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740 or steel comp 4130 or steel comp 6150 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially replaced by the NSN 5306-00-003-0644
| NSN | Name | Date |
|---|---|---|
| 5306-00-557-8800 | No Name Available | 02/01/1989 |
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 |
|---|---|
| 106467-5-26 | Close Tolerance Bolt |
| AS194-5-26 | Close Tolerance Bolt |
| CA4510-5-26 | Close Tolerance Bolt |
| CIPRD-MS27576-5-26R | Close Tolerance Bolt |
| MS27576-5-26 | Close Tolerance Bolt |
| MS27576-5-26R | 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
- 1 - Full descriptive item identification
- 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.
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A003B0
- U - Precious metal content is unknown
- 0027851
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7318152000
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
- KZ
- 093486
- Z
- 48950
- W - Rating variable
- 573 - Bolts or nuts (iron or steel),(less than 35 feet)
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- BZ -
- 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 5306-00-003-0644
What is the FSCG of the NSN 5306-00-003-0644?
Does the NSN 5306-00-003-0644 have a Schedule B code assigned?
Does NSN 5306-00-003-0644 require demilitarization?
Does NSN 5306-00-003-0644 contain precious materials?
Does NSN 5306-00-003-0644 contain hazardous materials?
When the NSN 5306-00-003-0644 was assigned to the Federal Catalog?
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