388750-1

View detailed technical data, stock status, and sourcing information for: 388750-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-031-0281

Item Name Code

03263

Assigment Date

10/28/1972 (53 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).

2 setscrew hole quantity, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.427 inches maximum distance from hole center to knob/skirt base, 0.685 inches nominal counterbore diameter, 0.250 inches nominal counterbore 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: 0.252 inches minimum and 0.254 inches maximum
Counterbore Diameter: 0.685 inches nominal
Counterbore Depth: 0.250 inches nominal
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.427 inches maximum
Overall Depth: 0.605 inches minimum
Width: 1.682 inches minimum and 1.758 inches maximum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Skirt Style: stepped
Attachment Method: setscrews
Overall Thickness: 1.300 inches minimum and 1.400 inches maximum
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Skirt Outside Diameter: 1.185 inches maximum
Skirt Design: nondetachable
Color: black
Style Designator: round with crank
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
388750-1	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-031-0281?

The FSCG of the NSN 5355-00-031-0281 is 5355

Does the NSN 5355-00-031-0281 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-031-0281 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 5355-00-031-0281 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-031-0281 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 5355-00-031-0281 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Sat, Oct 28, 1972