The Gearshaft,spur, cataloged under National Stock Number 3040-00-398-1691, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-398-1691 |
| Primary Part Number | RB5651 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc |
| Status | ACTIVE |
| Gear Outside Diameter | 2.292 INCHES NOMINAL IN |
| 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 |
|---|---|
| RB5651 PRIMARY | Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc (USA) |
| 2041205 | Hf Group Inc Dba Hf Group Inc (USA) |
| Reference | Meaning |
|---|---|
| RB5651 | 5/9 Secondary reference U.S. Government activity |
| RB5651 | 5/9 Secondary reference Kilgore Flares Company Llc |
NSN 3040-00-398-1691 is a Gearshaft,spur, manufactured by Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-398-1691 has 2 manufacturer part numbers on file: RB5651 (Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc), 2041205 (Hf Group Inc Dba Hf Group Inc).
Key specifications for RB5651: Gear Outside Diameter: 2.292 INCHES NOMINAL IN; Overall Length: 1.760 INCHES NOMINAL IN; Special Features: BRONZE. 1 specification is 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.