5305-01-251-6366

Find complete technical information, availability, and procurement data for: 5305-01-251-6366
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-251-6366

Item Name Code

29294

Assigment Date

03/21/1987 (39 years ago)

flat countersunk head style, 3.472 inches minimum and 3.502 inches maximum fastener length, 3a thread class, 3.289 inches minimum and 3.390 inches maximum thread 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: 3.289 inches minimum and 3.390 inches maximum
Fastener Length: 3.472 inches minimum and 3.502 inches maximum
Head Style: flat countersunk
Head Diameter: 0.455 inches minimum and 0.510 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Grip Length: 3.052 inches minimum and 3.072 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches threads
Material: steel comp e4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unjf

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
BACB30LU4-49	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-251-6366?

The FSCG of the NSN 5305-01-251-6366 is 5305

Does the NSN 5305-01-251-6366 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-251-6366 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 5305-01-251-6366 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-251-6366 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 5305-01-251-6366 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sat, Mar 21, 1987