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5306-00-057-2506

Find complete technical information, availability, and procurement data for: 5306-00-057-2506

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5306-00-057-2506
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-057-2506
Item Name Code
15939
Assigment Date
01/01/1961 (65 years ago)

A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

1.968 inches minimum and 2.032 inches maximum fastener length, 2a thread class, right-hand thread direction, button head style, 0.750 inches minimum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2a
Thread Direction
right-hand
Thread Length
0.750 inches minimum
Fastener Length
1.968 inches minimum and 2.032 inches maximum
Head Style
button
Head Diameter
0.563 inches minimum and 0.594 inches maximum
Head Height
0.125 inches minimum and 0.145 inches maximum
Neck Length
0.125 inches minimum and 0.156 inches maximum
Nominal Thread Diameter
0.250 inches
Thread Quantity Per Inch
20
Minimum Tensile Strength
55000 pounds per square inch
Hardness Rating
95.0 rockwell b maximum overall
Neck Width
0.245 inches minimum and 0.260 inches maximum
Material
steel overall
Material Document And Classification
sae gr 1 assn std single material response overall
Surface Treatment
cadmium or zinc overall
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 3 fed spec 1st treatment response or qq-z-325,ty 2,cl 3 fed spec 2nd treatment response overall
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5306-00-054-8011 No Name Available 08/01/1979
5306-00-265-0742 No Name Available 05/01/1976

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
MS35751-20 Square Neck Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-057-2506?
The FSCG of the NSN 5306-00-057-2506 is 5306
Does the NSN 5306-00-057-2506 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-057-2506 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 5306-00-057-2506 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-057-2506 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 5306-00-057-2506 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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