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)

0.345 inches minimum and 0.355 inches maximum thread length, 3a thread class, dee chamfer head style, 3.250 inches nominal fastener length, 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: 0.345 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Below is a list of NSNs that have been officially superseded by this NSN: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