AN28-50A

View detailed technical data, stock status, and sourcing information for: AN28-50A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-078-3637

Item Name Code

06662

Assigment Date

08/11/1967 (59 years ago)

An externally threaded fastener whose threaded and unthreaded portions are of one nominal diameter and are separated by a narrow circumferential groove. The head is designed to be held or driven with an inserted driver. Excludes:bolt, shear.

0.390 inches minimum and 0.454 inches maximum thread length, right-hand thread direction, 3a thread class, 3.156 inches minimum and 3.188 inches maximum fastener length, button 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: 0.390 inches minimum and 0.454 inches maximum
Fastener Length: 3.156 inches minimum and 3.188 inches maximum
Head Style: button
Head Diameter: 0.859 inches minimum and 0.891 inches maximum
Head Height: 0.234 inches minimum and 0.266 inches maximum
Groove Diameter: 0.417 inches minimum and 0.427 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Material: steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6758 mil spec 5th material response or ams 6300 assn std 6th material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator: unf

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
AN28-50A	Clevis Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-078-3637?

The FSCG of the NSN 5306-00-078-3637 is 5306

Does the NSN 5306-00-078-3637 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-078-3637 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 5306-00-078-3637 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-078-3637 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 5306-00-078-3637 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Aug 11, 1967