1364-252A

View detailed technical data, stock status, and sourcing information for: 1364-252A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-234-1421

Item Name Code

04905

Assigment Date

06/09/1986 (40 years ago)

3a thread class, right-hand thread direction, 3.250 inches nominal fastener length, dee chamfer head style, 0.345 inches minimum and 0.355 inches maximum 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: 0.345 inches minimum and 0.355 inches maximum
Fastener Length: 3.250 inches nominal
Head Style: dee chamfer
Head Diameter: 0.860 inches minimum and 0.900 inches maximum
Head Height: 0.310 inches minimum and 0.340 inches maximum
Distance From Centerline To Flat: 0.440 inches nominal
Shoulder Diameter: 0.559 inches minimum and 0.561 inches maximum first shoulder
Shoulder Length: 2.895 inches minimum and 2.905 inches maximum first shoulder
Shank Unthreaded Hole Diameter: 0.105 inches minimum and 0.108 inches maximum first hole
Nominal Thread Diameter: 0.440 inches
Thread Quantity Per Inch: 20
Hardness Rating: 40.0 rockwell c minimum and 43.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.110 inches nominal first hole
Shoulder Shape: round first shoulder
Material: steel comp 4340 overall
Material Document And Classification: mil-s-8844 mil spec single material response overall
Surface Treatment: cadmium head
Surface Treatment: enamel fastener
Surface Treatment Document And Classification: cpt8204 fscm 13002 mfr ref single treatment response fastener
Surface Treatment Document And Classification: mil-c-83286 mil spec single treatment response head
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-952-0121	No Name Available	09/01/1993

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
1364-252A	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-234-1421?

The FSCG of the NSN 5306-01-234-1421 is 5306

Does the NSN 5306-01-234-1421 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-234-1421 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 5306-01-234-1421 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-234-1421 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 5306-01-234-1421 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Mon, Jun 9, 1986