FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine · FSG 51 — Hand Tools
Government record, cited
Also searched as5133-01-350-7491 ·
5133013507491 ·
NIIN 013507491 ·
01-350-7491 ·
FSC 5133 Drill Bits, Counterbores, and Countersinks: Hand and Machine
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
FSG: 51 — Hand Tools
General Description
The Countersink, cataloged under National Stock Number 5133-01-350-7491, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Catalog Facts
Item Name
Countersink
FSC / FSG
5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine (FSG 51)
Technical Specifications
Parameter
Value
NSN
5133-01-350-7491
Item Name
Countersink
FSC / FSG
5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
Status
ACTIVE
Body Diameter
1.000 INCHES NOMINAL IN
Cutting End Style
SPIRAL FLUTE BLUNT END
Flute Quantity
3
Included Angle
82.0 DEGREES NOMINAL
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
87100002F
3/9Design control — primary reference
Ford, M a Manufacturing Co Inc
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 5133-01-350-7491?
NSN 5133-01-350-7491 is a Countersink, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
What are the specifications of 5133-01-350-7491?
Key specifications for 5133-01-350-7491: Body Diameter: 1.000 INCHES NOMINAL IN; Cutting End Style: SPIRAL FLUTE BLUNT END; Flute Quantity: 3; Included Angle: 82.0 DEGREES NOMINAL. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5133-01-350-7491 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.