3M956-3-1-4

View detailed technical data, stock status, and sourcing information for: 3M956-3-1-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-145-5450

Item Name Code

22846

Assigment Date

01/14/1983 (43 years ago)

right-hand thread direction, 0.225 inches minimum and 0.275 inches maximum thread length, oval countersunk head style, 0.297 inches minimum and 0.327 inches maximum fastener length, 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: 0.225 inches minimum and 0.275 inches maximum
Fastener Length: 0.297 inches minimum and 0.327 inches maximum
Head Style: oval countersunk
Head Diameter: 0.297 inches minimum and 0.302 inches maximum
Shoulder Diameter: 0.2021 inches minimum and 0.2026 inches maximum first shoulder
Shoulder Length: 0.007 inches minimum and 0.035 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape: round first shoulder
Material: steel comp xm-13 overall
Material Document And Classification: ams5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
3M956-3-1-4	Shoulder Screw
HT4041-3-1-4X	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-145-5450?

The FSCG of the NSN 5305-01-145-5450 is 5305

Does the NSN 5305-01-145-5450 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-145-5450 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 5305-01-145-5450 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-145-5450 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 5305-01-145-5450 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Jan 14, 1983