The Insert,flexible Coupling, cataloged under National Stock Number 3010-01-290-5331, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Zurn Industries Inc. 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 | 3010-01-290-5331 |
| Primary Part Number | 431871-1 |
| Item Name | Insert,flexible Coupling |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Zurn Industries Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| DD-410882-007 | Zurn Industries Inc (USA) |
| 431871-1 PRIMARY | Zurn Industries Inc (USA) |
NSN 3010-01-290-5331 is a Insert,flexible Coupling, manufactured by Zurn Industries Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-290-5331 has 2 manufacturer part numbers on file: DD-410882-007 (Zurn Industries Inc), 431871-1 (Zurn Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-292-9129. Verify interchangeability with system specifications before substitution.
Key specifications for 431871-1: End Item Identification: COUPLING SHFT FLEX MN PROSN. 0 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.