S51A1.25MC-WB

View detailed technical data, stock status, and sourcing information for: S51A1.25MC-WB
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-078-3497

Item Name Code

03263

Assigment Date

06/11/1979 (47 years ago)

An item designed to transmit manual, rotary or linear motion to other devices. May include detachable or nondetachable stud (shaft), pointer, or skirt. It may have reference markings in the form of dots, arrows, hairlines, and/or symbols which may be used in conjunction with a calibrated panel, vernier indicator, and the like to indicate the position or motion of items. For items having spokes or simulated spokes radiating from near the center to near the outside rim of the item and relatively thin round disk-shaped items 3 inches (76.2 mm) in diameter or over, see handwheel. For items calibrated in units or series of divisions to denote relative positioning of devices see dial, control. Excludes:doorknob; and handle (as modified).

0.011 inches minimum and 0.041 inches maximum counterbore depth, 0.158 inches maximum distance from hole center to knob/skirt base, 0.370 inches minimum counterbore diameter, 0.080 inches minimum and 0.082 inches maximum inside diameter, 2 setscrew hole quantity

Product Characteristics

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

Inside Diameter: 0.080 inches minimum and 0.082 inches maximum
Counterbore Diameter: 0.370 inches minimum
Counterbore Depth: 0.011 inches minimum and 0.041 inches maximum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.158 inches maximum
Overall Depth: 0.406 inches minimum
Gripping Surface Condition: smooth
Shaft Accommodation Style: counterbored
Outside Diameter: 0.530 inches minimum and 0.570 inches maximum
Reference Marking: dot
Attachment Method: setscrews
Overall Thickness: 0.480 inches minimum and 0.540 inches maximum
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 40 screw hole
Nominal Thread Size: 0.112 inches screw hole
Special Features: slip clutch has 6 detents,with torque pounds per square inch of 1.0 min 1.5 max
Color: gray, fed std 595, 36231
Style Designator: round
Thread Series Designator: unc screw hole

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
7542195P0017	Knob
7542195P17	Knob
S51A1.25MC-WB	Knob
S51A1.25MC-WB/SGA	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-078-3497?

The FSCG of the NSN 5355-01-078-3497 is 5355

Does the NSN 5355-01-078-3497 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-078-3497 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 5355-01-078-3497 contain precious materials?

Precious metal content is unknown

Does NSN 5355-01-078-3497 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 5355-01-078-3497 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Mon, Jun 11, 1979