The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-253-0575, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-253-0575 |
| Primary Part Number | 9553P |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Keyway Depth | 0.2660 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 3.3750 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INTERNAL GEAR |
| Taper Minor Diameter | 2.1370 INCHES NOMINAL BOTH ENDS IN |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 8.370 INCHES MINIMUM AND 8.375 INCHES MAXIMUM IN |
| Features Provided | KEYWAY AND EXPOSED COUPLING BOLT TYPE AND MILL MOTOR AND SHROUDED COUPLING BOLT TYPE |
| Bore Shape | TAPERED BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Taper Largest Diameter | 2.3130 INCHES NOMINAL BOTH ENDS IN |
| Keyway Width | 0.500 INCHES NOMINAL BOTH ENDS 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 |
|---|---|
| 9553P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| CYB41S4700-58ALT2PC257 | 5/9 Secondary reference U.S. Government activity |
| SL6115PC257 | 5/9 Secondary reference U.S. Government activity |
| 9553P | 3/9 Design control — primary reference U.S. Government activity |
| SL6105PC257 | 5/9 Secondary reference U.S. Government activity |
| CYB41S4700-58ALT2PC257 | 5/9 Secondary reference Naval Sea Systems Command |
| CVB41S4700-55ALT1PC257 | 5/9 Secondary reference U.S. Government activity |
| CVB41S4700-55ALT1PC257 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 3010-00-253-0575 is a Coupling,shaft,flexible, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-253-0575 has 1 manufacturer part number on file: 9553P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 9553P: Keyway Depth: 0.2660 INCHES NOMINAL BOTH ENDS IN; Bore Length: 3.3750 INCHES NOMINAL BOTH ENDS IN; Design Type: INTERNAL GEAR; Taper Minor Diameter: 2.1370 INCHES NOMINAL BOTH ENDS IN. 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.