51HDMA

View detailed technical data, stock status, and sourcing information for: 51HDMA
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-01-218-9897

Item Name Code

03263

Assigment Date

10/20/1985 (40 years ago)

0.325 inches maximum distance from hole center to knob/skirt base, 2 setscrew hole quantity, grip aid gripping surface condition, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.625 inches minimum and 0.685 inches maximum overall 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: 0.252 inches minimum and 0.254 inches maximum
Setscrew Hole Quantity: 2
Distance From Hole Center To Knob/Skirt Base: 0.325 inches maximum
Overall Depth: 0.625 inches minimum and 0.685 inches maximum
Gripping Surface Condition: grip aid
Shaft Accommodation Style: flatted one side
Outside Diameter: 0.490 inches minimum and 0.530 inches maximum
Skirt Style: flared
Reference Marking: slot
Attachment Method: setscrews
Inside Width: 0.222 inches minimum and 0.227 inches maximum
Overall Thickness: 0.625 inches minimum and 0.685 inches maximum
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: 0.900 inches maximum
Skirt Design: nondetachable
Special Features: counterbore at shaft hole 0.325 in. max dia and 0.177 in. dp
Color: black, lusterless
Style Designator: round
Thread Series Designator: unc screw hole
Specification/Standard Data: 96906-ms91528 government standard

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
04HB	Knob
505-3DS-4M	Knob
51HDMA	Knob
MS91528-0H4B	Knob

FAQs

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

What is the FSCG of the NSN 5355-01-218-9897?

The FSCG of the NSN 5355-01-218-9897 is 5355

Does the NSN 5355-01-218-9897 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-01-218-9897 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 5355-01-218-9897 contain precious materials?

Item does not contain precious metal.

Does NSN 5355-01-218-9897 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 5355-01-218-9897 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sun, Oct 20, 1985