The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-528-8481, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-528-8481 |
| Primary Part Number | 490-2200-805255ALT5PC2 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Depth | 0.1250 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) SECOND END |
| Threaded Hole Location | BOTH ENDS: LOCATED ON TOP OF KEY |
| Bore Length | 0.8750 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INSERT |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 2.125 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Threaded Hole Quantity | 1 BOTH ENDS |
| Thread Size Designator | 1/4-20 BOTH ENDS |
| Keyway Width | 0.250 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 0.9375 INCHES NOMINAL BOTH ENDS IN |
| Furnished Items and Quantity | 2 SETSCREWS |
| Insert Material | RUBBER |
| 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 |
|---|---|
| 490-2200-805255ALT5PC2 PRIMARY | Naval Sea Systems Command (USA) |
| B321-15-16B0RE PRIMARY | Charles Bond Company Dba Christiana Machine Company (USA) |
| Reference | Meaning |
|---|---|
| 490-2200-805255ALT5PC2 | 5/9 Secondary reference U.S. Government activity |
NSN 3010-00-528-8481 is a Coupling,shaft,flexible, manufactured by Naval Sea Systems Command, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-528-8481 has 2 manufacturer part numbers on file: 490-2200-805255ALT5PC2 (Naval Sea Systems Command), B321-15-16B0RE (Charles Bond Company Dba Christiana Machine Company).
Key specifications for 490-2200-805255ALT5PC2: Keyway Depth: 0.1250 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S) SECOND END; Threaded Hole Location: BOTH ENDS: LOCATED ON TOP OF KEY; Bore Length: 0.8750 INCHES NOMINAL BOTH ENDS IN. 15 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.