5310-01-124-1261

Find complete technical information, availability, and procurement data for: 5310-01-124-1261
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-124-1261

Item Name Code

01869

Assigment Date

12/27/1981 (44 years ago)

0.240 inches minimum and 0.245 inches maximum internal straight key width, 2 internal key quantity, 3.250 inches nominal hole diameter, 4.250 inches nominal outside diameter, 1.380 inches nominal distance from centerline to top of internal key

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 3.250 inches nominal
Outside Diameter: 4.250 inches nominal
Internal Straight Key Width: 0.240 inches minimum and 0.245 inches maximum
Distance From Centerline To Top Of Internal Key: 1.380 inches nominal
Internal Key Quantity: 2
Material Thickness: 0.090 inches nominal
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 33.0 rockwell c maximum
Surface Finish: 90.0 microinches all surfaces
Part Name Assigned By Controlling Agency: navy special project
Special Features: drill 4 holes 0.265 dia equally spaced on 3.750 in. dia bolt circle
Material: steel comp 4130 overall
Material Document And Classification: mil-s-18729,cond n mil spec single material response overall
Surface Treatment: oxide film overall
Surface Treatment Document And Classification: mil-c-13924,cl 1 mil spec single treatment response overall
Style Designator: key

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
64351-11217-102	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-01-124-1261?

The FSCG of the NSN 5310-01-124-1261 is 5310

Does the NSN 5310-01-124-1261 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-01-124-1261 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 5310-01-124-1261 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-124-1261 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 5310-01-124-1261 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Sun, Dec 27, 1981