The Bit,rock Drill, cataloged under National Stock Number 3820-01-343-3247, is classified within Federal Supply Class 3820 (Mining, Rock Drilling, Earth Boring, and Related Equipment) of the Construction, Mining, Excavating Equipment group. The manufacturer of record is Varel Intl Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3820-01-343-3247 |
| Primary Part Number | L121 12 1/4 |
| Item Name | Bit,rock Drill |
| FSC / FSG | 3820 / 38 — Mining, Rock Drilling, Earth Boring, and Related Equipment |
| Manufacturer | Varel Intl Inc |
| Status | ACTIVE |
| Drilled Hole Diameter | 12.2500 INCHES IN |
| Cutting End Type | ANY ACCEPTABLE |
| Attachment Method | THREADED BOTTOM DRIVE |
| 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 |
|---|---|
| L121 12 1/4 PRIMARY | Varel Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| V2-12-1/4 | 5/9 Secondary reference Varel Intl Inc |
NSN 3820-01-343-3247 is a Bit,rock Drill, manufactured by Varel Intl Inc, classified under FSC 3820, Mining, Rock Drilling, Earth Boring, and Related Equipment. Status: active.
NSN 3820-01-343-3247 has 1 manufacturer part number on file: L121 12 1/4 (Varel Intl Inc).
Key specifications for L121 12 1/4: Drilled Hole Diameter: 12.2500 INCHES IN; Special Features: COMPRESSIVE STRENGTH 3000 TO 6000 PSI;DRILLING SPEED 50 TO 100 RPM RPM; Cutting End Type: ANY ACCEPTABLE; Attachment Method: THREADED BOTTOM DRIVE. 3 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.