The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-389-3305, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division. Government technical data includes 9 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. 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 | 3010-01-389-3305 |
| Primary Part Number | PL1-1/2 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division |
| Status | ACTIVE |
| Bore Length | 2.0620 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 4.2500 INCHES NOMINAL SECOND END IN |
| Overall Diameter | 4.750 INCHES NOMINAL IN |
| Style Designator | PLAIN SLEEVE |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT BOTH ENDS |
| Body Material | STEEL |
| Bore Diameter | 1.0000 INCHES NOMINAL SECOND END IN |
| Bore Diameter | 1.8750 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3010-01-389-3305 is a Coupling,shaft,rigid, manufactured by Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-389-3305 has 2 manufacturer part numbers on file: PL1-1/2 (Emerson Power Transmission Corporation Dba Emerson Div Emerson Power Transmission Division), YMD-6377 (Appleton Marine Inc).
1 possible match (shared part number, not a government interchangeability claim): 6210-01-431-6781. Verify interchangeability with system specifications before substitution.
Key specifications for PL1-1/2: Bore Length: 2.0620 INCHES NOMINAL BOTH ENDS IN; Bore Length: 4.2500 INCHES NOMINAL SECOND END IN; Overall Diameter: 4.750 INCHES NOMINAL IN; Style Designator: PLAIN SLEEVE. 9 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.