51A1-25MC

View detailed technical data, stock status, and sourcing information for: 51A1-25MC
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-528-5143

Item Name Code

03263

Assigment Date

09/01/1974 (51 years ago)

0.078 inches nominal inside diameter, grip aid gripping surface condition, 0.158 inches nominal distance from hole center to knob/skirt base, 0.405 inches nominal overall depth, 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: 0.078 inches nominal
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.158 inches nominal
Overall Depth: 0.405 inches nominal
Gripping Surface Condition: grip aid
Shaft Accommodation Style: round
Outside Diameter: 0.490 inches minimum and 0.530 inches maximum
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
Color: gray/grey
Material: plastic
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
222850-002	Knob
51A1-25MC	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-528-5143?

The FSCG of the NSN 5355-00-528-5143 is 5355

Does the NSN 5355-00-528-5143 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-528-5143 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 5355-00-528-5143 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-528-5143 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 5355-00-528-5143 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sun, Sep 1, 1974