280237-2

View detailed technical data, stock status, and sourcing information for: 280237-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-436-7752

Item Name Code

03263

Assigment Date

09/12/1969 (56 years ago)

A rod or rod assembly specifically designed to be mounted vertically on the highest point of a structure and connected to ground in such a way that it can carry a lightning discharge to ground. May include accessories such as clamps and cables.

smooth gripping surface condition, 0.252 inches minimum and 0.253 inches maximum inside diameter, 0.500 inches nominal overall depth, 2 setscrew hole quantity, 0.250 inches nominal distance from hole center to knob/skirt base

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 0.253 inches maximum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.250 inches nominal
Overall Depth: 0.500 inches nominal
Gripping Surface Condition: smooth
Shaft Accommodation Style: round
Outside Diameter: 1.250 inches nominal
Skirt Style: flared
Attachment Method: setscrews
Overall Thickness: 0.750 inches nominal
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Skirt Outside Diameter: 0.500 inches nominal
Skirt Design: nondetachable
Special Features: one 0.062 in radius slot located on od of knob
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
280237-2	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-436-7752?

The FSCG of the NSN 5355-00-436-7752 is 5355

Does the NSN 5355-00-436-7752 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-436-7752 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 5355-00-436-7752 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-436-7752 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 5355-00-436-7752 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Sep 12, 1969