1R4B

View detailed technical data, stock status, and sourcing information for: 1R4B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-926-5509

Item Name Code

03263

Assigment Date

04/18/1967 (59 years ago)

0.435 inches maximum distance from hole center to knob/skirt base, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.590 inches minimum overall depth, 0.690 inches minimum and 0.730 inches maximum width, 2 setscrew hole quantity

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: 0.435 inches maximum
Overall Depth: 0.590 inches minimum
Width: 0.690 inches minimum and 0.730 inches maximum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: flatted one side
Length: 1.720 inches maximum
Skirt Style: flared
Reference Marking: indicator line and slot
Attachment Method: setscrews
Inside Width: 0.222 inches minimum and 0.227 inches maximum
Overall Thickness: 0.790 inches minimum and 0.840 inches maximum
Material Transparency: opaque
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.164 inches screw hole
Skirt Outside Diameter: 1.520 inches maximum
Skirt Design: nondetachable
Pointer Design: nondetachable
Special Features: white indicator line only,shaft accommodation hole counterbore,0.515 in. min dia,0.266 in,min depth
Style Designator: bar with single pointer
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
1R4B	Knob
70-8WLS-2DG	Knob
MS91528-1R4B	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-926-5509?

The FSCG of the NSN 5355-00-926-5509 is 5355

Does the NSN 5355-00-926-5509 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-926-5509 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 5355-00-926-5509 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-926-5509 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 5355-00-926-5509 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Apr 18, 1967