6558508

View detailed technical data, stock status, and sourcing information for: 6558508

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6558508
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-01-372-0789
Item Name Code
01853
Assigment Date
03/03/1993 (33 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. 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. The unthreaded portion is of specific 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. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

2.500 inches nominal thread length, right-hand thread direction, 2a thread class, 4.000 inches nominal shank length, 0.625 inches minimum and 0.627 inches maximum eye inside diameter

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
2.500 inches nominal
Eye Inside Diameter
0.625 inches minimum and 0.627 inches maximum
Shank Length
4.000 inches nominal
Eye Stock Thickness
0.745 inches minimum and 0.750 inches maximum
Overall Length
5.500 inches nominal
Nominal Thread Diameter
0.625 inches
Thread Quantity Per Inch
11
Minimum Tensile Strength
115000 pounds per square inch
Distance From Center Of Eye To Shank End
4.750 inches nominal
Eye Outside Width
1.250 inches nominal
Material
steel overall
Surface Treatment
oxide overall
Surface Treatment Document And Classification
mil-c-13924 mil spec single treatment response overall
Style Designator
round, closed
Thread Series Designator
unc

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
6558508 Eye Bolt
CL-3A-SB Eye Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-372-0789?
The FSCG of the NSN 5306-01-372-0789 is 5306
Does the NSN 5306-01-372-0789 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-372-0789 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 5306-01-372-0789 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-01-372-0789 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 5306-01-372-0789 was assigned to the Federal Catalog?
It was assigned 33 years ago, on Wed, Mar 3, 1993

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