FSC 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine · FSG 51 — Hand Tools
Government record, cited
Also searched as5133-01-326-4529 ·
5133013264529 ·
NIIN 013264529 ·
01-326-4529 ·
FSC 5133 Drill Bits, Counterbores, and Countersinks: Hand and Machine · 16A11878-1 · 16VA11878-1
Nominal Cutting Diameter: 0.5000 INCHES AND 0.5620 INCHES AND 1.6880 INCHES AND 1.8750 INCHES IN
Flute Quantity: 4
Identification
NSN: 5133-01-326-4529
NIIN: 013264529
FSC: 5133 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
FSG: 51 — Hand Tools
General Description
The Counterbore,machine, cataloged under National Stock Number 5133-01-326-4529, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5133-01-326-4529
Item Name
Counterbore,machine
FSC / FSG
5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine
Status
ACTIVE
Cutting End Style
SOLID
Nominal Cutting Diameter
0.5000 INCHES AND 0.5620 INCHES AND 1.6880 INCHES AND 1.8750 INCHES IN
Flute Quantity
4
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
16A11878-1
3/2Design control — primary reference
U.S. Government activity
16VA11878-1
5/9Secondary reference
U.S. Government activity
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 5133-01-326-4529?
NSN 5133-01-326-4529 is a Counterbore,machine, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
What are the specifications of 5133-01-326-4529?
Key specifications for 5133-01-326-4529: Cutting End Style: SOLID; Overall Length: 13.000 INCHES NOMINAL IN; Nominal Cutting Diameter: 0.5000 INCHES AND 0.5620 INCHES AND 1.6880 INCHES AND 1.8750 INCHES IN; Flute Quantity: 4. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5133-01-326-4529 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.