MS21081-3

View detailed technical data, stock status, and sourcing information for: MS21081-3

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MS21081-3
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-728-7711
Item Name Code
05280
Assigment Date
01/01/1961 (65 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

right-hand thread direction, prevailing torque with nonmetallic insert locking feature, 3b thread class, plate nut style, 0.098 inches minimum and 0.103 inches maximum mounting hole 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 with nonmetallic insert
Mounting Hole Diameter
0.098 inches minimum and 0.103 inches maximum
Nut Style
plate
Nut Length
0.703 inches maximum
Nut Height
0.234 inches minimum and 0.312 inches maximum
Plate Thickness
0.075 inches maximum
Nut Mounting Provision
straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
0.339 inches minimum and 0.349 inches maximum
Temp Rating
250.0 fahrenheit nominal
Thread Series
unjf
Thread Quantity Per Inch
32
Hardness Rating
32.0 rockwell c maximum
Nominal Thread Size
0.190 inches
Material
plastic polyamide (nylon) locking insert
Material
steel nut
Surface Treatment
cadmium and chromate nut
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 3 fed spec single treatment response nut

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
F22NA5-02 Plate Self-Locking Nut
MS21081-3 Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-728-7711?
The FSCG of the NSN 5310-00-728-7711 is 5310
Does the NSN 5310-00-728-7711 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-728-7711 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 5310-00-728-7711 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-728-7711 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 5310-00-728-7711 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

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