Countersink5133-01-372-0571

NSN 5133-01-372-0571 · NIIN 013720571

FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine · FSG 51 — Hand Tools

Government record, cited

Also searched as 5133-01-372-0571 · 5133013720571 · NIIN 013720571 · 01-372-0571 · FSC 5133 Drill Bits, Counterbores, and Countersinks: Hand and Machine

Nearby stock numbers ← 5133-01-372-0570 Drill, Twist · 5133-01-372-0572 Cutter, Counterbore →

Features

Countersink — FSC 5133
Body Diameter: 0.875 INCHES NOMINAL IN
Point Diameter: 0.463 INCHES NOMINAL IN
Cutting End Style: STRAIGHT FLUTE BLUNT END
Nominal Thread Diameter: 0.375 INCHES IN
Features Provided: INTEGRAL PILOT
Thread Direction: RIGHT-HAND
Shank Style: EXTERNALLY THREADED

Identification

NSN: 5133-01-372-0571
NIIN: 013720571
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
FSG: 51 — Hand Tools

General Description

The Countersink, cataloged under National Stock Number 5133-01-372-0571, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5133-01-372-0571
Item Name	Countersink
FSC / FSG	5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
Status	ACTIVE
Body Diameter	0.875 INCHES NOMINAL IN
Point Diameter	0.463 INCHES NOMINAL IN
Cutting End Style	STRAIGHT FLUTE BLUNT END
Nominal Thread Diameter	0.375 INCHES IN
Features Provided	INTEGRAL PILOT
Thread Direction	RIGHT-HAND
Shank Style	EXTERNALLY THREADED
Flute Quantity	3
Included Angle	100.0 DEGREES NOMINAL
Material	STEEL OVERALL
Thread Quantity	24 PER INCH

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
166C011-463B2	3/9 Design control — primary reference Alvord-Polk, Inc. Dba Alvord-Polk Tool Company Div Alvord-Polk Tool

No interchangeability data on file.

Other items in FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5133-00-001-1296

5133-00-001-1296 · Item name not on file

5133-00-001-1298

5133-00-001-1298 · Item name not on file

5133-00-005-2258

5133-00-005-2258 · Item name not on file

5133-00-005-7727

5133-00-005-7727 · Item name not on file

5133-00-005-8710

5133-00-005-8710 · Item name not on file

5133-00-005-8711

5133-00-005-8711 · Item name not on file

5133-00-005-8712

5133-00-005-8712 · Item name not on file

5133-00-005-8713

5133-00-005-8713 · Item name not on file

Frequently Asked Questions

What is NSN 5133-01-372-0571?

NSN 5133-01-372-0571 is a Countersink, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.

What are the specifications of 5133-01-372-0571?

Key specifications for 5133-01-372-0571: Body Diameter: 0.875 INCHES NOMINAL IN; Point Diameter: 0.463 INCHES NOMINAL IN; Cutting End Style: STRAIGHT FLUTE BLUNT END; Nominal Thread Diameter: 0.375 INCHES IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 5133-01-372-0571 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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