MS21387-08

View detailed technical data, stock status, and sourcing information for: MS21387-08
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-544-2987

Item Name Code

03263

Assigment Date

10/06/1974 (51 years ago)

0.190 inches nominal distance from hole center to knob/skirt base, 0.249 inches minimum and 0.251 inches maximum inside diameter, 20 fluted foil quantity, 2 setscrew hole quantity, 0.460 inches nominal overall depth

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Inside Diameter: 0.249 inches minimum and 0.251 inches maximum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.190 inches nominal
Overall Depth: 0.460 inches nominal
Fluted Foil Quantity: 20
Gripping Surface Condition: grip aid
Shaft Accommodation Style: flatted one side
Outside Diameter: 0.750 inches nominal
Attachment Method: setscrews
Inside Width: 0.222 inches minimum and 0.224 inches maximum
Overall Thickness: 0.630 inches nominal
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Color: gray, fed std 595, 36231
Style Designator: round with fluted foils
Thread Series Designator: unc screw hole

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-00-364-9571	No Name Available	03/01/1978

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
10117813	Knob
533-118-19	Knob
MS21387-08	Knob
NAMS25049	Knob
NASM21387-08	Knob
ST5M1255N103A	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-544-2987?

The FSCG of the NSN 5355-00-544-2987 is 5355

Does the NSN 5355-00-544-2987 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-544-2987 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 5355-00-544-2987 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-00-544-2987 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 5355-00-544-2987 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sun, Oct 6, 1974