5306-01-728-5644

Find complete technical information, availability, and procurement data for: 5306-01-728-5644
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-728-5644

Item Name Code

27851

Assigment Date

04/10/2025 (1 year ago)

A length of nonmetallic hose with fittings on one or both ends. For items without fittings, see hose, nonmetallic. Excludes:hose assembly, air duct; and hose assembly, air duct, air breathing.

right-hand thread direction, 0.425 inches nominal thread length, 3a thread class, 0.660 inches minimum and 0.690 inches maximum fastener length, hexagon 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: 3a
Thread Direction: right-hand
Thread Length: 0.425 inches nominal
Fastener Length: 0.660 inches minimum and 0.690 inches maximum
Head Style: hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.429 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2797 inches minimum and 0.2807 inches maximum
End Item Identification: b1-bacft
Nominal Thread Diameter: 0.2500 inches
Grip Length: 0.240 inches minimum and 0.260 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Part Name Assigned By Controlling Agency: bolt,mtension,hex head,close tolerance,a286 cres,long thread,reduced major thread dia.,self locking and nonlocking,160 ksi ftu
Material: iron alloy 660 overall
Material Document And Classification: ams5731,5732,5737 or 5853 aerospace material spec std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: sae ams 2700 method 1,type 2 or 8,class 4 international std/spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas6703 thru 6720 professional/industrial association standard

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
NAS6704U4Y	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-728-5644?

The FSCG of the NSN 5306-01-728-5644 is 5306

Does the NSN 5306-01-728-5644 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-728-5644 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 5306-01-728-5644 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-728-5644 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 5306-01-728-5644 was assigned to the Federal Catalog?

It was assigned 1 year ago, on Thu, Apr 10, 2025