3971-0250

View detailed technical data, stock status, and sourcing information for: 3971-0250
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Federal Supply Group

Hand Tools

Federal Supply Classification

5133 Countersinks: Hand and Machine, Counterbores and Drill Bits

National Stock Number

5133-01-051-8701

Item Name Code

05237

Assigment Date

12/06/1977 (48 years ago)

0.250 inches nominal thread diameter, right-hand thread direction, externally threaded w/hex nut shank style, general purpose cutting end style, 2.062 inches minimum and 2.312 inches maximum overall length

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
Shank Style: externally threaded w/hex nut
Overall Length: 2.062 inches minimum and 2.312 inches maximum
Nominal Thread Diameter: 0.250 inches
Cutting End Style: general purpose
Nominal Cutting Diameter: 0.2500 inches
Cutting Rotation Direction: right-hand
Flute Length: 1.000 inches minimum and 1.250 inches maximum
Flute Quantity: 2
Point Type: split
Thread Quantity: 28 per inch
Point Angle: 135.0 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
3971-0250	Twist Drill

FAQs

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

What is the FSCG of the NSN 5133-01-051-8701?

The FSCG of the NSN 5133-01-051-8701 is 5133

Does the NSN 5133-01-051-8701 have a Schedule B code assigned?

Yes, the Schedule B code is 8205100000

Does NSN 5133-01-051-8701 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 5133-01-051-8701 contain precious materials?

Item does not contain precious metal.

Does NSN 5133-01-051-8701 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 5133-01-051-8701 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Tue, Dec 6, 1977