257-4238

View detailed technical data, stock status, and sourcing information for: 257-4238
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 257-4238 to receive an up to date pricing and availability quote by email.

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, 0.188 inches nominal distance from hole center to knob/skirt base, 2 setscrew hole quantity, 0.438 inches nominal overall depth, 0.250 inches nominal 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: 0.250 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Below is a list of NSNs that have been officially superseded by this NSN: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