The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-325-3018, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Evac North America Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-325-3018 |
| Primary Part Number | 2999657 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Keyway Depth | 0.1562 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 1.0625 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INSERT |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Keyway Width | 0.312 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 1.1250 INCHES NOMINAL BOTH ENDS IN |
| Insert Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 2999657 PRIMARY | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 2999657 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5J | 5/9 Secondary reference TB Woods's Corporation |
NSN 3010-01-325-3018 is a Coupling,shaft,flexible, manufactured by Evac North America Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-325-3018 has 1 manufacturer part number on file: 2999657 (Evac North America Inc).
2 possible matches (shared part number, not a government interchangeability claim): 6850-01-378-0235, 3010-01-605-5609. Verify interchangeability with system specifications before substitution.
Key specifications for 2999657: Keyway Depth: 0.1562 INCHES NOMINAL BOTH ENDS IN; Bore Length: 1.0625 INCHES NOMINAL BOTH ENDS IN; Design Type: INSERT; Keying Facility Type: KEYWAY BOTH ENDS. 11 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.