91A4MC

View detailed technical data, stock status, and sourcing information for: 91A4MC
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-903-7900

Item Name Code

03263

Assigment Date

01/01/1960 (66 years ago)

0.640 inches minimum counterbore diameter, 0.260 inches maximum distance from hole center to knob/skirt base, 0.114 inches minimum counterbore depth, 0.252 inches minimum and 0.254 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: 0.252 inches minimum and 0.254 inches maximum
Counterbore Diameter: 0.640 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: 0.520 inches minimum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Outside Diameter: 0.890 inches minimum and 0.930 inches maximum
Attachment Method: setscrews
Overall Thickness: 0.760 inches minimum and 0.820 inches maximum
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
Thread Series Designator: unc screw hole
Specification/Standard Data: 96906-ms91528 government standard

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
222728-204	Knob
2N2G	Knob
411123-57	Knob
509-1-2GM	Knob
91A4MC	Knob
G90-1-2G	Knob
MS91528-2N2G	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-903-7900?

The FSCG of the NSN 5355-00-903-7900 is 5355

Does the NSN 5355-00-903-7900 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-903-7900 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 5355-00-903-7900 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-903-7900 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 5355-00-903-7900 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960