0740704

View detailed technical data, stock status, and sourcing information for: 0740704
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-889-3031

Item Name Code

16282

Assigment Date

01/01/1962 (64 years ago)

flat chamfer head style, 0.423 inches minimum and 0.453 inches maximum thread length, right-hand thread direction, 3a thread class, 0.485 inches minimum and 0.515 inches maximum fastener 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: 0.423 inches minimum and 0.453 inches maximum
Fastener Length: 0.485 inches minimum and 0.515 inches maximum
Head Style: flat chamfer
Head Diameter: 0.303 inches minimum and 0.312 inches maximum
Head Height: 0.185 inches minimum and 0.190 inches maximum
Locking Feature: patch or pellet or strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.159 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
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Below is a list of NSNs that have been officially superseded by this NSN: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
2590-00-934-2511	No Name Available	06/10/1967

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
0740704	Socket Head Cap Screw
418728-29	Socket Head Cap Screw
LK21262-29	Socket Head Cap Screw
MS21262-29	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-889-3031?

The FSCG of the NSN 5305-00-889-3031 is 5305

Does the NSN 5305-00-889-3031 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-889-3031 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 5305-00-889-3031 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-889-3031 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 5305-00-889-3031 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962