MS51866-48

View detailed technical data, stock status, and sourcing information for: MS51866-48
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-210-0810

Item Name Code

15893

Assigment Date

06/06/1985 (41 years ago)

prevailing torque all metal design or prevailing torque all nonmetallic design locking feature, 3b thread class, right-hand thread direction, 0.423 inches minimum and 0.453 inches maximum pilot length, 0.696 inches minimum and 0.700 inches maximum pilot diameter

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 all nonmetallic design
Pilot Diameter: 0.696 inches minimum and 0.700 inches maximum
Pilot Length: 0.423 inches minimum and 0.453 inches maximum
Lubrication: dry film lubricant
Nut Style: spline
Nut Diameter: 0.860 inches minimum and 0.890 inches maximum
Nut Height: 0.798 inches minimum and 0.828 inches maximum
Temp Rating: 250.0 fahrenheit maximum
Thread Series: unf
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.500 inches
Special Features: 0.875 in. width across flats
Material: plastic polyamide (nylon) locking insert
Material: steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541 nut
Material Document And Classification: 66 fed std all material responses nut
Surface Treatment: cadmium and chromate overall except insert
Surface Treatment Document And Classification: qq-p-416,ty2,cl 3 fed spec all treatment responses overall except insert

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
MS51866-48	Spline Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-210-0810?

The FSCG of the NSN 5310-01-210-0810 is 5310

Does the NSN 5310-01-210-0810 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-210-0810 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 5310-01-210-0810 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-210-0810 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 5310-01-210-0810 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Thu, Jun 6, 1985