AN180-21A

View detailed technical data, stock status, and sourcing information for: AN180-21A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-619-0977

Item Name Code

27851

Assigment Date

01/01/1960 (66 years ago)

0.953 inches minimum thread length, 3a thread class, 2.266 inches nominal fastener length, hexagon head style, 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: 0.953 inches minimum
Fastener Length: 2.266 inches nominal
Head Style: hexagon
Head Height: 0.328 inches minimum and 0.360 inches maximum
Width Between Flats: 0.928 inches minimum and 0.940 inches maximum
Grip Diameter: 0.6234 inches minimum and 0.6240 inches maximum
Nominal Thread Diameter: 0.625 inches
Grip Length: 1.312 inches nominal
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 125000 pounds per square inch
Surface Finish: 125.0 microinches threads
Surface Finish: 250.0 microinches head
Surface Finish: 250.0 microinches top of head
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
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
AN180-21A	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-619-0977?

The FSCG of the NSN 5306-00-619-0977 is 5306

Does the NSN 5306-00-619-0977 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-619-0977 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 5306-00-619-0977 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-619-0977 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 5306-00-619-0977 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960