The Insert,flexible Coupling, cataloged under National Stock Number 3010-00-580-4372, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-580-4372 |
| Primary Part Number | 127657 |
| Item Name | Insert,flexible Coupling |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Keyway Depth | 0.078 INCHES NOMINAL IN |
| Key Width | 0.156 INCHES NOMINAL IN |
| Overall Thickness | 0.140 INCHES NOMINAL IN |
| Style Designator | KEY TO CROSS KEYWAY FACE, ROUND BORE |
| Overall Outside Diameter | 0.625 INCHES NOMINAL IN |
| Key Height | 0.078 INCHES NOMINAL IN |
| Keyway Width | 0.156 INCHES NOMINAL IN |
| 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 |
|---|---|
| 127657 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 543-0631-002 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3010-00-580-4372 is a Insert,flexible Coupling, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-580-4372 has 1 manufacturer part number on file: 127657 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 127657: Keyway Depth: 0.078 INCHES NOMINAL IN; Key Width: 0.156 INCHES NOMINAL IN; Overall Thickness: 0.140 INCHES NOMINAL IN; Style Designator: KEY TO CROSS KEYWAY FACE, ROUND BORE. 7 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.