5305-00-437-5278

Find complete technical information, availability, and procurement data for: 5305-00-437-5278
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-437-5278

Item Name Code

29294

Assigment Date

08/29/1969 (56 years ago)

1.168 inches minimum and 1.188 inches maximum fastener length, 0.282 inches minimum and 0.333 inches maximum thread length, right-hand thread direction, flat countersunk head style, 3a thread class

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: 0.282 inches minimum and 0.333 inches maximum
Fastener Length: 1.168 inches minimum and 1.188 inches maximum
Head Style: flat countersunk
Head Diameter: 0.449 inches minimum and 0.507 inches maximum
Locking Feature: detent ball grip
Grip Diameter: 0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.750 inches minimum and 0.766 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 4680 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Distance From Head Largest Bearing Surface To Shank Hole Center: 0.840 inches minimum and 0.866 inches maximum first hole
Surface Finish: 63.0 microinches grip
Material: steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 4130 or steel comp 6150 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
106466-4-12	Close Tolerance Screw
AS195-4-12	Close Tolerance Screw
MS27577-4-12	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-437-5278?

The FSCG of the NSN 5305-00-437-5278 is 5305

Does the NSN 5305-00-437-5278 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-437-5278 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 5305-00-437-5278 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-437-5278 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 5305-00-437-5278 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Aug 29, 1969