C121A4MC

View detailed technical data, stock status, and sourcing information for: C121A4MC
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part C121A4MC to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-083-9623

Item Name Code

03263

Assigment Date

10/05/1979 (46 years ago)

A ridge item, usually of flat material, formed into a dihedral angle (generally a right angle) which may be reinforced; it is designed to position, align, or support an item(s) in relation to another. Excludes:brace (as modified); bracket (1), mounting; and bracket, shelf.

0.114 inches minimum counterbore depth, 0.260 inches maximum distance from hole center to knob/skirt base, 0.750 inches minimum counterbore diameter, 2 setscrew hole quantity, 0.252 inches minimum and 0.254 inches maximum inside diameter

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: 0.750 inches minimum
Counterbore Depth: 0.114 inches minimum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.260 inches maximum
Overall Depth: 0.455 inches minimum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Outside Diameter: 1.240 inches minimum and 1.280 inches maximum
Attachment Method: setscrews
Overall Thickness: 1.170 inches minimum and 1.270 inches maximum
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Special Features: tactile form-dimmer,1.136 in. min dia,1.176 in. max dia,0.600 in. min thickness,0.650 in. max thickness
Style Designator: round with bar face
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
3N2G3	Knob
512-1-2GM-3	Knob
C121A4MC	Knob
G125-1-2G3	Knob
KMS12N2GRAY3	Knob
MS91528-3N2G3	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-083-9623?

The FSCG of the NSN 5355-01-083-9623 is 5355

Does the NSN 5355-01-083-9623 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-083-9623 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 5355-01-083-9623 contain precious materials?

Precious metal content is unknown

Does NSN 5355-01-083-9623 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 5355-01-083-9623 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Fri, Oct 5, 1979