MS51866-39

View detailed technical data, stock status, and sourcing information for: MS51866-39
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-080-9207

Item Name Code

15893

Assigment Date

08/04/1979 (47 years ago)

0.360 inches minimum and 0.390 inches maximum pilot length, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, 0.509 inches minimum and 0.513 inches maximum pilot diameter, right-hand thread direction, 3b 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: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design or prevailing torque with nonmetallic insert
Pilot Diameter: 0.509 inches minimum and 0.513 inches maximum
Pilot Length: 0.360 inches minimum and 0.390 inches maximum
Lubrication: dry film lubricant
Nut Style: spline
Nut Diameter: 0.570 inches nominal
Nut Height: 0.656 inches nominal
Temp Rating: 250.0 fahrenheit maximum
Thread Series: unf
Thread Quantity Per Inch: 24
Hardness Rating: 28.0 rockwell c maximum
Nominal Thread Size: 0.375 inches
Special Features: optional hex style,0.688 in. width across flats
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall

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
MS51866-39	Spline Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-080-9207?

The FSCG of the NSN 5310-01-080-9207 is 5310

Does the NSN 5310-01-080-9207 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-080-9207 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 5310-01-080-9207 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-080-9207 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 5310-01-080-9207 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Sat, Aug 4, 1979