B18.5 TY1, CL1, STY A

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-260-7561

Item Name Code

15939

Assigment Date

01/01/1963 (63 years ago)

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

1.500 inches minimum thread length, 14.000 inches nominal fastener length, right-hand thread direction, button head style, 2a thread class

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: 1.500 inches minimum
Fastener Length: 14.000 inches nominal
Head Style: button
Head Diameter: 1.032 inches minimum and 1.094 inches maximum
Head Height: 0.250 inches minimum and 0.270 inches maximum
Neck Length: 0.250 inches minimum and 0.281 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 55000 pounds per square inch
Hardness Rating: 95.0 rockwell b maximum overall
Neck Width: 0.492 inches minimum and 0.515 inches maximum
Material: steel overall
Material Document And Classification: ff-b-584 fed spec single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and a style and 1 class

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
"B18.5 .500-13 UNC-2A X 14"LG"	Square Neck Bolt
B18.5 TY1, CL1, STY A	Square Neck Bolt
F58411AXS614.00	Square Neck Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-260-7561?

The FSCG of the NSN 5306-00-260-7561 is 5306

Does the NSN 5306-00-260-7561 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-260-7561 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 5306-00-260-7561 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-260-7561 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 5306-00-260-7561 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963