166C011-309B5

View detailed technical data, stock status, and sourcing information for: 166C011-309B5
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Federal Supply Group

Hand Tools

Federal Supply Classification

5133 Countersinks: Hand and Machine, Counterbores and Drill Bits

National Stock Number

5133-01-321-9309

Item Name Code

05260

Assigment Date

06/27/1990 (36 years ago)

An angular cutting tool, usually made with angular relief, having one or more flutes with specific size angle cutting edges. It is used for chamfering and countersinking holes. The tool may have a straight shank, tapered shank, bit stock shank or special shank requiring a special holder, for holding in a power- or hand-operated machine. It may be designed to be driven or turned by means of a wrench or carpenter's brace. For items requiring a holder but the holder is not included, use cutter, countersink.

right-hand thread direction, 0.309 inches nominal pilot diameter, 1.060 inches nominal overall length, 0.750 inches nominal body diameter, externally threaded shank style

Product Characteristics

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

Thread Direction: right-hand
Pilot Diameter: 0.309 inches nominal
Shank Style: externally threaded
Overall Length: 1.060 inches nominal
Body Diameter: 0.750 inches nominal
Nominal Thread Diameter: 0.375 inches
Cutting End Style: spiral flute blunt end
Cutting Rotation Direction: right-hand
Flute Quantity: 3
Features Provided: integral pilot
Thread Quantity: 24 per inch
Included Angle: 100.0 degrees nominal
Material: steel overall
Thread Series Designator: unf

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
166C011-309B5	Countersink

FAQs

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

What is the FSCG of the NSN 5133-01-321-9309?

The FSCG of the NSN 5133-01-321-9309 is 5133

Does the NSN 5133-01-321-9309 have a Schedule B code assigned?

Yes, the Schedule B code is 8205100000

Does NSN 5133-01-321-9309 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 5133-01-321-9309 contain precious materials?

Item does not contain precious metal.

Does NSN 5133-01-321-9309 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 5133-01-321-9309 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Jun 27, 1990