The Coupling,rod,rock Drill, cataloged under National Stock Number 3820-01-338-7447, 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 Atlas Copco. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3820-01-338-7447 |
| Primary Part Number | 855017B0435 |
| Item Name | Coupling,rod,rock Drill |
| FSC / FSG | 3820 / 38 — Mining, Rock Drilling, Earth Boring, and Related Equipment |
| Manufacturer | Atlas Copco |
| Status | ACTIVE |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Nominal Rod Size for Which Designed | 4.500 INCHES IN |
| Material | STEEL |
| Attachment Method | TAPERED SOCKET 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 |
|---|---|
| 855017B0435 PRIMARY | Atlas Copco (USA) |
| Reference | Meaning |
|---|---|
| 855017B0435 | D/9 Drawing number reference only Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
NSN 3820-01-338-7447 is a Coupling,rod,rock Drill, manufactured by Atlas Copco, classified under FSC 3820, Mining, Rock Drilling, Earth Boring, and Related Equipment. Status: active.
NSN 3820-01-338-7447 has 1 manufacturer part number on file: 855017B0435 (Atlas Copco).
Key specifications for 855017B0435: Overall Length: 24.000 INCHES NOMINAL IN; Outside Diameter: 4.500 INCHES NOMINAL IN; Nominal Rod Size for Which Designed: 4.500 INCHES IN; Special Features: BOTH ENDS HAVE 2-7/8 I.F.A.P.I. BOX THREAD,4 THREADS PER INCH,RIGHT-HAND,2-INCH TAPER PER FOOT,THREAD FORM A.P.I. V-0.038R. 4 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.