MS21049-08K

View detailed technical data, stock status, and sourcing information for: MS21049-08K
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-728-0939

Item Name Code

05280

Assigment Date

01/01/1961 (65 years ago)

0.098 inches minimum and 0.103 inches maximum mounting hole diameter, 3b thread class, right-hand thread direction, prevailing torque all metal design locking feature, soluble lubricant lubrication

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
Lubrication: soluble lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate
Nut Length: 0.948 inches maximum
Nut Height: 0.272 inches maximum
Plate Thickness: 0.047 inches maximum
Plate Width: 0.360 inches minimum and 0.422 inches maximum
Nut Mounting Provision: countersunk holes
Mounting Provision Location: opposite nut projection side
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: 450.0 fahrenheit maximum
Thread Series: unjc
Thread Quantity Per Inch: 32
Hardness Rating: 49.0 rockwell c maximum
Nominal Thread Size: 0.164 inches
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum nut
Mounting Hole Countersink Angle: 98.0 degrees minimum and 102.0 degrees maximum
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec all treatment responses 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
15600NM-82BC	Plate Self-Locking Nut
K1100-08BCCW	Plate Self-Locking Nut
MS21049-08K	Plate Self-Locking Nut
R2100X08K	Plate Self-Locking Nut
T2SH832BCCPC	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-728-0939?

The FSCG of the NSN 5310-00-728-0939 is 5310

Does the NSN 5310-00-728-0939 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-728-0939 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 5310-00-728-0939 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-728-0939 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 5310-00-728-0939 was assigned to the Federal Catalog?

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