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BL722976

View detailed technical data, stock status, and sourcing information for: BL722976

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BL722976
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-637-0388
Item Name Code
06675
Assigment Date
01/01/1963 (63 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

1.750 inches nominal fastener length, 2a thread class, right-hand thread direction, 0.688 inches minimum thread length, square extended washer head style

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
0.688 inches minimum
Fastener Length
1.750 inches nominal
Head Style
square extended washer
Head Height
0.750 inches nominal
Width Between Flats
0.497 inches minimum and 0.502 inches maximum
Extended Washer Diameter
0.750 inches nominal
Extended Washer Thickness
0.125 inches nominal
First Diameter From Head
0.266 inches nominal
Distance From Largest Bearing Surface Of Head To End Of First Diameter
1.062 inches nominal
Nominal Thread Diameter
0.375 inches
Thread Quantity Per Inch
16
Externally Relieved Body Diameter Quantity
1
Material
steel comp 1117 overall
Surface Treatment
zinc or phosphate overall
Surface Treatment Document And Classification
3064 fscm 54567 mfr ref 1st treatment response or 3066 fscm 54567 mfr ref 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Below is a list of NSNs that have been officially superseded by this NSN: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
5306-00-206-0314 No Name Available 01/01/1963

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
7609314 Externally Relieved Body Bolt
BL722976 Externally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-637-0388?
The FSCG of the NSN 5306-00-637-0388 is 5306
Does the NSN 5306-00-637-0388 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-637-0388 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 5306-00-637-0388 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-637-0388 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 5306-00-637-0388 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

Professional Distribution

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