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BM5526-5-26

View detailed technical data, stock status, and sourcing information for: BM5526-5-26

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BM5526-5-26
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-054-4954
Item Name Code
15903
Assigment Date
06/01/1967 (59 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.

0.611 inches minimum thread length, double hexagon w/hole head style, 3a thread class, 2.236 inches nominal fastener length, right-hand thread direction

Product Characteristics

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

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.611 inches minimum
Fastener Length
2.236 inches nominal
Head Style
double hexagon w/hole
Head Height
0.319 inches nominal
Width Between Flats
0.367 inches minimum and 0.376 inches maximum
Extended Washer Diameter
0.575 inches minimum and 0.585 inches maximum
Extended Washer Thickness
0.050 inches nominal
Grip Diameter
0.3110 inches minimum and 0.3120 inches maximum
Nominal Thread Diameter
0.312 inches
Grip Length
1.615 inches minimum and 1.635 inches maximum
Thread Quantity Per Inch
24
Minimum Tensile Strength
260000 pounds per square inch
Material
steel overall
Thread Series Designator
unjf

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
AIC260E5-26 Shear Bolt
BM5526-5-26 Shear Bolt
C305-5-26 Shear Bolt
EWB26-5-26 Shear Bolt
HE111-0034-0526 Shear Bolt
VS2005-5-26 Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-054-4954?
The FSCG of the NSN 5306-00-054-4954 is 5306
Does the NSN 5306-00-054-4954 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-054-4954 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 5306-00-054-4954 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-00-054-4954 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 5306-00-054-4954 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Thu, Jun 1, 1967

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