The Coupling,shaft,rigid, cataloged under National Stock Number 3010-00-388-0876, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is B.w. Elliott Manufacturing Co., Llc. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3010-00-388-0876 |
| Primary Part Number | 12128-401 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| Overall Diameter | 4.250 INCHES NOMINAL IN |
| Body Material | COPPER ALLOY AND STEEL |
| 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 |
|---|---|
| 12128-401 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| S2449-501 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| Reference | Meaning |
|---|---|
| 24491-501 | 5/9 Secondary reference Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
| 4876VD3-3 | 5/9 Secondary reference Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
| 121-3DM-N | 5/9 Secondary reference Noack Locksmith and Supply Inc Div Dba Noack Locksmith |
| 4876-33 | 5/9 Secondary reference Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
| 4873-33 | C/1 Advisory reference — outside the item-of-supply concept Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
NSN 3010-00-388-0876 is a Coupling,shaft,rigid, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-388-0876 has 2 manufacturer part numbers on file: 12128-401 (B.w. Elliott Manufacturing Co., Llc), S2449-501 (B.w. Elliott Manufacturing Co., Llc).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-429-1673. Verify interchangeability with system specifications before substitution.
Key specifications for 12128-401: Overall Diameter: 4.250 INCHES NOMINAL IN; Overall Length: 8.411 INCHES MINIMUM AND 9.911 INCHES MAXIMUM IN; Body Material: COPPER ALLOY AND STEEL. 2 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.