BACB30LE6K20Y

View detailed technical data, stock status, and sourcing information for: BACB30LE6K20Y
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-727-1631

Item Name Code

15903

Assigment Date

02/19/2025 (1 year ago)

A device to protect the ear against harmful noise or water.

right-hand thread direction, double hexagon w/hole head style, 1.878 inches minimum and 1.908 inches maximum fastener length, 3a thread class, 0.643 inches nominal 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: 3a
Thread Direction: right-hand
Thread Length: 0.643 inches nominal
Fastener Length: 1.878 inches minimum and 1.908 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.330 inches minimum and 0.350 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Extended Washer Diameter: 0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness: 0.081 inches minimum and 0.101 inches maximum
Grip Diameter: 0.4047 inches minimum and 0.4057 inches maximum
End Item Identification: kc-135 acft
Nominal Thread Diameter: 0.3750 inches
Grip Length: 1.24 inches minimum and 1.26 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 200000 pounds per square inch
Part Name Assigned By Controlling Agency: bolt,12 point head,200 ksi min tensile,a286 cres (nominal and oversize)
Material: iron alloy 660 overall
Material Document And Classification: ams 5737 assn std single material response overall
Surface Treatment: aluminum overall
Surface Treatment Document And Classification: bms10-85,type i,class a mfr ref single treatment response 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
BACB30LE6K20Y	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-727-1631?

The FSCG of the NSN 5306-01-727-1631 is 5306

Does the NSN 5306-01-727-1631 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-727-1631 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 5306-01-727-1631 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-727-1631 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 5306-01-727-1631 was assigned to the Federal Catalog?

It was assigned 1 year ago, on Wed, Feb 19, 2025