257-4281

View detailed technical data, stock status, and sourcing information for: 257-4281

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257-4281
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5355 Knobs and Pointers
National Stock Number
5355-00-644-3886
Item Name Code
03263
Assigment Date
01/01/1963 (63 years ago)

round shaft accommodation style, grip aid gripping surface condition, 2 setscrew hole quantity, 0.625 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
Overall Depth
0.625 inches nominal
Gripping Surface Condition
grip aid
Shaft Accommodation Style
round
Outside Diameter
1.000 inches maximum
Reference Marking
brill
Attachment Method
setscrews
Overall Thickness
0.719 inches nominal
Screw Drive Type
hexagon socket
Color
black
Style Designator
round

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5355-00-644-3895 No Name Available 12/21/1965

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
257-4281 Knob
257-7813 Knob
336A121 Knob
554-1363 Knob

FAQs

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

What is the FSCG of the NSN 5355-00-644-3886?
The FSCG of the NSN 5355-00-644-3886 is 5355
Does the NSN 5355-00-644-3886 have a Schedule B code assigned?
Yes, the Schedule B code is 8531900002
Does NSN 5355-00-644-3886 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 5355-00-644-3886 contain precious materials?
Precious metal content is unknown
Does NSN 5355-00-644-3886 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 5355-00-644-3886 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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