418590-23

View detailed technical data, stock status, and sourcing information for: 418590-23
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-958-7667

Item Name Code

16282

Assigment Date

01/01/1961 (65 years ago)

0.649 inches minimum and 0.750 inches maximum thread length, flat chamfer head style, 3a thread class, right-hand thread direction, 0.720 inches minimum and 0.750 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: 0.649 inches minimum and 0.750 inches maximum
Fastener Length: 0.720 inches minimum and 0.750 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
End Item Identification: multiple launch rocket system (mlrs)
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches minimum and 0.190 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 6 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-007-3088	No Name Available	02/01/1982
5305-00-058-3724	No Name Available	07/25/1996
5305-00-877-5517	No Name Available	11/01/1982

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
003-007948-023	Socket Head Cap Screw
0716659	Socket Head Cap Screw
418590-23	Socket Head Cap Screw
4806-035	Socket Head Cap Screw
5305PL0629277	Socket Head Cap Screw
911607-02	Socket Head Cap Screw
M83461/1-450	Socket Head Cap Screw
MS16996-23	Socket Head Cap Screw
NASM16996-23	Socket Head Cap Screw
S58150-416C12E	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-958-7667?

The FSCG of the NSN 5305-00-958-7667 is 5305

Does the NSN 5305-00-958-7667 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-958-7667 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 5305-00-958-7667 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-958-7667 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 5305-00-958-7667 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961