The Insert,flexible Coupling, cataloged under National Stock Number 3010-01-324-1320, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Isotta Fraschini Motori Spa. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-324-1320 |
| Primary Part Number | 3549181401 |
| Item Name | Insert,flexible Coupling |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Isotta Fraschini Motori Spa |
| Status | ACTIVE |
| Overall Thickness | 34.0 MILLIMETERS NOMINAL MM |
| Bolt Hole Diameter | 12.5 MILLIMETERS NOMINAL MM |
| Overall Outside Diameter | 579.9 MILLIMETERS NOMINAL MM |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 3549181401 | Isotta Fraschini Motori Spa (ITA) |
| 79331F91 ITEM G | Isotta Fraschini Motori Spa (ITA) |
| Reference | Meaning |
|---|---|
| 79331F91 ITEM G | 3/9 Design control — primary reference Isotta Fraschini Motori S P a |
| 79331F91 | 5/1 Secondary reference Isotta Fraschini Motori Spa |
| 3549181401 | C/1 Advisory reference — outside the item-of-supply concept Grandi Motori Fincantieri /fggm/ Div |
NSN 3010-01-324-1320 is a Insert,flexible Coupling, manufactured by Isotta Fraschini Motori Spa, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-324-1320 has 2 manufacturer part numbers on file: 3549181401 (Isotta Fraschini Motori Spa), 79331F91 ITEM G (Isotta Fraschini Motori Spa).
3 possible matches (shared part number, not a government interchangeability claim): 3010-01-324-1321, 3010-01-324-2075, 3010-01-324-2076. Verify interchangeability with system specifications before substitution.
Key specifications for 3549181401: Overall Thickness: 34.0 MILLIMETERS NOMINAL MM; Bolt Hole Diameter: 12.5 MILLIMETERS NOMINAL MM; Overall Outside Diameter: 579.9 MILLIMETERS NOMINAL MM; Bolt Hole Quantity: 8. 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.