1U1B

View detailed technical data, stock status, and sourcing information for: 1U1B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-501-2399

Item Name Code

03263

Assigment Date

07/06/1974 (52 years ago)

0.369 inches maximum distance from hole center to knob/skirt base, 0.188 inches minimum counterbore depth, 0.485 inches minimum counterbore diameter, 2 setscrew hole quantity, 0.127 inches minimum and 0.129 inches maximum 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: 0.127 inches minimum and 0.129 inches maximum
Counterbore Diameter: 0.485 inches minimum
Counterbore Depth: 0.188 inches minimum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.369 inches maximum
Overall Depth: 0.568 inches minimum
Width: 0.690 inches minimum and 0.730 inches maximum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Length: 1.020 inches minimum and 1.070 inches maximum
Skirt Style: stepped
Reference Marking: indicator line
Attachment Method: setscrews
Overall Thickness: 0.752 inches minimum and 0.812 inches maximum
End Item Identification: mobile subscriber equipment (mse),launcher, grenade smoke, m250/m239
Material Transparency: opaque
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 40 screw hole
Nominal Thread Size: 0.112 inches screw hole
Skirt Outside Diameter: 1.000 inches maximum
Skirt Design: nondetachable
Pointer Design: nondetachable
Style Designator: 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
1U1B	Knob
507-5WL-1M	Knob
70-5WL-1G	Knob
72B2MA/WL	Knob
KMS7K W/WHITE LINE 1L	Knob
MS91528-1U1B	Knob

FAQs

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

What is the FSCG of the NSN 5355-00-501-2399?

The FSCG of the NSN 5355-00-501-2399 is 5355

Does the NSN 5355-00-501-2399 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-501-2399 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 5355-00-501-2399 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-501-2399 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 5355-00-501-2399 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sat, Jul 6, 1974