5306-01-320-0457
Close Tolerance Bolt
Find complete technical information, availability, and procurement data for NSN 5306-01-320-0457 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.
3a thread class, flat countersunk head style, right-hand thread direction, 1.558 inches minimum and 1.588 inches maximum fastener length, 0.318 inches minimum and 0.328 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
- 0.318 inches minimum and 0.328 inches maximum
- Fastener Length
- 1.558 inches minimum and 1.588 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.338 inches minimum and 0.381 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 1.240 inches minimum and 1.260 inches maximum
- Thread Quantity Per Inch
- 32
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- steel comp 4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 assn std 3rd material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2 cl 2 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 |
|---|---|
| NAS7403-20 | 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
- ZK
FAQs
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What is the FSCG of the NSN 5306-01-320-0457?
Does the NSN 5306-01-320-0457 have a Schedule B code assigned?
Does NSN 5306-01-320-0457 require demilitarization?
Does NSN 5306-01-320-0457 contain precious materials?
Does NSN 5306-01-320-0457 contain hazardous materials?
When the NSN 5306-01-320-0457 was assigned to the Federal Catalog?
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