4C4B

View detailed technical data, stock status, and sourcing information for: 4C4B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-263-8356

Item Name Code

03263

Assigment Date

09/20/1987 (38 years ago)

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

grip aid gripping surface condition, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.260 inches maximum distance from hole center to knob/skirt base, 2 setscrew hole quantity, 0.520 inches minimum 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: 0.252 inches minimum and 0.254 inches maximum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.260 inches maximum
Overall Depth: 0.520 inches minimum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: flatted one side
Outside Diameter: 1.740 inches minimum and 1.780 inches maximum
Reference Marking: dot
Attachment Method: setscrews
Inside Width: 0.222 inches minimum and 0.227 inches maximum
Overall Thickness: 0.820 inches minimum and 0.880 inches maximum
Material Transparency: opaque
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Special Features: shaft accomodation hole counterbored 0.750 in. min dia,0.114 in. min depth
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
171ADMA/WD	Knob
175-1WD-2DG	Knob
4C4B	Knob
517-1WD-4M	Knob
KMS17C2LNR	Knob
MS91528-4C4B	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-263-8356?

The FSCG of the NSN 5355-01-263-8356 is 5355

Does the NSN 5355-01-263-8356 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-263-8356 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 5355-01-263-8356 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-01-263-8356 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 5355-01-263-8356 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sun, Sep 20, 1987