The Insert,flexible Coupling, cataloged under National Stock Number 3010-01-327-9939, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-327-9939 |
| Item Name | Insert,flexible Coupling |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Status | ACTIVE |
| Overall Thickness | 2.230 INCHES NOMINAL IN |
| Style Designator | MULTIPLE HOLES, ROUND BORE |
| Bolt Hole Diameter | 0.410 INCHES NOMINAL IN |
| Overall Outside Diameter | 6.060 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 66629 | 3/9 Design control — primary reference Emerson Power Transmission Corporation Div Ept |
NSN 3010-01-327-9939 is a Insert,flexible Coupling, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5970-01-329-4550, 2920-01-344-1661. Verify interchangeability with system specifications before substitution.
Key specifications for 3010-01-327-9939: Overall Thickness: 2.230 INCHES NOMINAL IN; Style Designator: MULTIPLE HOLES, ROUND BORE; Bolt Hole Diameter: 0.410 INCHES NOMINAL IN; Overall Outside Diameter: 6.060 INCHES NOMINAL IN. 5 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.