The Cutter,countersink, cataloged under National Stock Number 5133-01-057-3574, is classified within Federal Supply Class 5133 (Drill Bits, Counterbores, and Countersinks: Hand and Machine) of the Hand Tools group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-057-3574 |
| Primary Part Number | 79565-3 |
| Item Name | Cutter,countersink |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Body Diameter | 0.453 INCHES NOMINAL IN |
| Cutting End Style | STRAIGHT FLUTE BLUNT END |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | REPLACEABLE PILOT |
| Pilot Diameter | 0.241 INCHES NOMINAL IN |
| Shank Style | EXTERNALLY THREADED |
| Included Angle | 60.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Thread Quantity | 32 PER INCH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 79565-3 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 70990A-3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5133-01-057-3574 is a Cutter,countersink, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-057-3574 has 1 manufacturer part number on file: 79565-3 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 79565-3: Body Diameter: 0.453 INCHES NOMINAL IN; Cutting End Style: STRAIGHT FLUTE BLUNT END; Nominal Thread Diameter: 0.312 INCHES IN; Features Provided: REPLACEABLE PILOT. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.