539-125

View detailed technical data, stock status, and sourcing information for: 539-125
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-988-5284

Item Name Code

03263

Assigment Date

01/01/1962 (64 years ago)

smooth gripping surface condition, 2 setscrew hole quantity, 0.620 inches nominal overall depth, 0.380 inches nominal distance from hole center to knob/skirt base, 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
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.380 inches nominal
Overall Depth: 0.620 inches nominal
Gripping Surface Condition: smooth
Shaft Accommodation Style: round
Outside Diameter: 1.250 inches nominal
Skirt Style: ring
Reference Marking: single line
Attachment Method: setscrews
Overall Thickness: 0.750 inches nominal
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.138 inches screw hole
Skirt Outside Diameter: 0.690 inches nominal
Skirt Design: nondetachable
Pointer Design: nondetachable
Style Designator: round with single pointed bar face
Thread Series Designator: unc screw hole

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-00-709-8990	No Name Available	07/05/1968

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
539-125	Knob
539-125C8A	Knob
950589-2	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-988-5284?

The FSCG of the NSN 5355-00-988-5284 is 5355

Does the NSN 5355-00-988-5284 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-988-5284 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 5355-00-988-5284 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-988-5284 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 5355-00-988-5284 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962