TT377-A3B1

View detailed technical data, stock status, and sourcing information for: TT377-A3B1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-244-4573

Item Name Code

03263

Assigment Date

11/14/1986 (39 years ago)

A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.

2 setscrew hole quantity, smooth gripping surface condition, 0.260 inches nominal inside diameter, 0.500 inches maximum overall depth, 0.250 inches nominal distance from hole center to knob/skirt base

Product Characteristics

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

Inside Diameter: 0.260 inches nominal
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.250 inches nominal
Overall Depth: 0.500 inches maximum
Gripping Surface Condition: smooth
Shaft Accommodation Style: round
Outside Diameter: 0.620 inches nominal
Attachment Method: setscrews
Overall Thickness: 0.560 inches nominal
Material Transparency: clear
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 40 screw hole
Nominal Thread Size: 0.112 inches screw hole
Color: black
Material: plastic
Style Designator: crown
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
4020-0041	Knob
TT377-A1B1	Knob
TT377-A3B1	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-244-4573?

The FSCG of the NSN 5355-01-244-4573 is 5355

Does the NSN 5355-01-244-4573 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-244-4573 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 5355-01-244-4573 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-01-244-4573 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 5355-01-244-4573 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Nov 14, 1986