257-4238

View detailed technical data, stock status, and sourcing information for: 257-4238
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-538-6636

Item Name Code

03263

Assigment Date

01/01/1963 (63 years ago)

grip aid gripping surface condition, 2 setscrew hole quantity, 0.250 inches nominal inside diameter, 0.188 inches nominal distance from hole center to knob/skirt base, 0.438 inches nominal overall depth

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Inside Diameter: 0.250 inches nominal
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.188 inches nominal
Overall Depth: 0.438 inches nominal
Gripping Surface Condition: grip aid
Shaft Accommodation Style: round
Outside Diameter: 0.750 inches nominal
Attachment Method: setscrews
Overall Thickness: 0.563 inches nominal
Screw Drive Type: hexagon socket
Color: black
Style Designator: crown

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-00-284-5528	No Name Available	10/01/1975
5355-00-644-1532	No Name Available	06/01/1976

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
257-4238	Knob
368-2184	Knob
S230-3BB	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-538-6636?

The FSCG of the NSN 5355-00-538-6636 is 5355

Does the NSN 5355-00-538-6636 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-538-6636 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 5355-00-538-6636 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-538-6636 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 5355-00-538-6636 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963