The Drill,masonry,rotary Driven, cataloged under National Stock Number 5133-01-671-4339, 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 Relton Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5133-01-671-4339 |
| Primary Part Number | RX-3-4 |
| Item Name | Drill,masonry,rotary Driven |
| FSC / FSG | 5133 / 51 — Drill Bits, Counterbores, and Countersinks: Hand and Machine |
| Manufacturer | Relton Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.188 INCHES NOMINAL IN |
| Cutting End Style | SLOW HELIX SINGLE BIT CORELESS MASONRY |
| Flute Length | 2.500 INCHES NOMINAL IN |
| Nominal Cutting Diameter | 0.1875 INCHES IN |
| Shank Style | STRAIGHT ROUND |
| Material | STEEL SHANK |
| Material | CARBIDE TIP |
| 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 |
|---|---|
| RX-3-4 PRIMARY | Relton Corporation (USA) |
| Reference | Meaning |
|---|---|
| W1874 | 5/9 Secondary reference Tru-Cut, Inc. |
NSN 5133-01-671-4339 is a Drill,masonry,rotary Driven, manufactured by Relton Corporation, classified under FSC 5133, Drill Bits, Counterbores, and Countersinks: Hand and Machine. Status: active.
NSN 5133-01-671-4339 has 1 manufacturer part number on file: RX-3-4 (Relton Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3835-01-690-4150. Verify interchangeability with system specifications before substitution.
Key specifications for RX-3-4: Shank Diameter: 0.188 INCHES NOMINAL IN; Cutting End Style: SLOW HELIX SINGLE BIT CORELESS MASONRY; Flute Length: 2.500 INCHES NOMINAL IN; Overall Length: 4.000 INCHES NOMINAL IN. 7 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.