70990-6

View detailed technical data, stock status, and sourcing information for: 70990-6
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Federal Supply Group

Hand Tools

Federal Supply Classification

5133 Countersinks: Hand and Machine, Counterbores and Drill Bits

National Stock Number

5133-01-056-1989

Item Name Code

05426

Assigment Date

02/18/1978 (48 years ago)

0.471 inches nominal pilot diameter, externally threaded shank style, straight flute blunt end cutting end style, 1.000 inches nominal body diameter, 0.438 inches nominal thread diameter

Product Characteristics

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

Pilot Diameter: 0.471 inches nominal
Shank Style: externally threaded
Body Diameter: 1.000 inches nominal
Nominal Thread Diameter: 0.438 inches
Cutting End Style: straight flute blunt end
Features Provided: replaceable pilot
Thread Quantity: 28 per inch
Included Angle: 60.0 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
70990-6	Countersink Cutter
79565-6	Countersink Cutter

FAQs

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

What is the FSCG of the NSN 5133-01-056-1989?

The FSCG of the NSN 5133-01-056-1989 is 5133

Does the NSN 5133-01-056-1989 have a Schedule B code assigned?

Yes, the Schedule B code is 8205100000

Does NSN 5133-01-056-1989 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 5133-01-056-1989 contain precious materials?

Item does not contain precious metal.

Does NSN 5133-01-056-1989 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 5133-01-056-1989 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sat, Feb 18, 1978