A71B2MC

View detailed technical data, stock status, and sourcing information for: A71B2MC
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-052-9244

Item Name Code

03263

Assigment Date

12/22/1977 (48 years ago)

An item designed to transmit manual, rotary or linear motion to other devices. May include detachable or nondetachable stud (shaft), pointer, or skirt. It may have reference markings in the form of dots, arrows, hairlines, and/or symbols which may be used in conjunction with a calibrated panel, vernier indicator, and the like to indicate the position or motion of items. For items having spokes or simulated spokes radiating from near the center to near the outside rim of the item and relatively thin round disk-shaped items 3 inches (76.2 mm) in diameter or over, see handwheel. For items calibrated in units or series of divisions to denote relative positioning of devices see dial, control. Excludes:doorknob; and handle (as modified).

0.127 inches minimum and 0.129 inches maximum inside diameter, 0.485 inches minimum counterbore diameter, 2 setscrew hole quantity, 0.369 inches maximum distance from hole center to knob/skirt base, 0.188 inches minimum counterbore depth

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
Gripping Surface Condition: grip aid
Shaft Accommodation Style: counterbored
Outside Diameter: 0.690 inches minimum and 0.730 inches maximum
Skirt Style: stepped
Attachment Method: setscrews
Overall Thickness: 1.025 inches minimum and 1.125 inches maximum
Screw Drive Type: hexagon socket
Thread Quantity Per Inch: 40 screw hole
Nominal Thread Size: 0.112 inches screw hole
Skirt Outside Diameter: 0.680 inches maximum
Skirt Design: nondetachable
Special Features: tactile form-intensity,0.610 in. min dia,0.650 in. max dia,0.320 in. min thickness,0.370 in. max thickness
Style Designator: round with triangular face
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
507-2-1GM-1	Knob
A71B2MC	Knob
KMS7D1LGRAY1	Knob
MS91528-1D1G1	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-052-9244?

The FSCG of the NSN 5355-01-052-9244 is 5355

Does the NSN 5355-01-052-9244 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-052-9244 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 5355-01-052-9244 contain precious materials?

Precious metal content is unknown

Does NSN 5355-01-052-9244 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 5355-01-052-9244 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Dec 22, 1977