MS21078-04

View detailed technical data, stock status, and sourcing information for: MS21078-04
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-726-9072

Item Name Code

05280

Assigment Date

01/01/1961 (65 years ago)

3b thread class, plate nut style, prevailing torque with nonmetallic insert locking feature, right-hand thread direction, 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: 0.984 inches maximum
Nut Height: 0.133 inches minimum and 0.218 inches maximum
Plate Thickness: 0.075 inches maximum
Plate Width: 0.375 inches minimum and 0.406 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
Center To Center Distance Between Mounting Holes Along Length: 0.686 inches minimum and 0.690 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 40
Hardness Rating: 32.0 rockwell c maximum
Nominal Thread Size: 0.112 inches
Material: plastic polyamide (nylon) locking insert
Material: steel nut
Surface Treatment: cadmium nut
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response nut

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-687-6616	No Name Available	03/05/1998

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
F22NA1-40	Plate Self-Locking Nut
MS21078-04	Plate Self-Locking Nut
NAS1023N04	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-726-9072?

The FSCG of the NSN 5310-00-726-9072 is 5310

Does the NSN 5310-00-726-9072 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-726-9072 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 5310-00-726-9072 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-726-9072 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 5310-00-726-9072 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961