4CPB

View detailed technical data, stock status, and sourcing information for: 4CPB
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Federal Supply Group

Hand Tools

Federal Supply Classification

5136 Collets; Hand and Machine, Dies and Taps

National Stock Number

5136-00-825-7126

Item Name Code

15218

Assigment Date

01/01/1962 (64 years ago)

right-hand thread direction, 0.318 inches maximum shank diameter, 0.238 inches nominal width across flats, +0.2830 to 0.2835 inches thread pitch diameters, 1.125 inches nominal thread length

Product Characteristics

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

Thread Pitch Diameters: +0.2830 to 0.2835 inches
Thread Direction: right-hand
Thread Length: 1.125 inches nominal
Shank Diameter: 0.318 inches maximum
Width Across Flats: 0.238 inches nominal
Overall Length: 2.719 inches nominal
Flute Quantity: 3
Thread Structure: regular
Thread Forming Method: ground
Starting Chamfer Type: plug
Square End Length: unable to decode
Material And Location: unable to decode
Special Features: finishing tap for screw thread insert
Style Designator: straight flute
Thread Size And Series/Type Designator: 0.250-20 sti
Specification/Standard Data: 05047-asme b94.9 professional/industrial association standard
Nondefinitive Spec/Std Data: 1 type and 1 class

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5136-00-555-7661	No Name Available	01/24/1966

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
4CPB	Thread Cutting Tap

FAQs

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

What is the FSCG of the NSN 5136-00-825-7126?

The FSCG of the NSN 5136-00-825-7126 is 5136

Does the NSN 5136-00-825-7126 have a Schedule B code assigned?

Yes, the Schedule B code is 8207400000

Does NSN 5136-00-825-7126 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 5136-00-825-7126 contain precious materials?

Item does not contain precious metal.

Does NSN 5136-00-825-7126 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 5136-00-825-7126 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962