The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-276-7312, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3010-00-276-7312 |
| Primary Part Number | SG-2740PC27 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Keyway Depth | 0.6360 INCHES NOMINAL SECOND END IN |
| Keyway Depth | 0.7607 INCHES NOMINAL FIRST END IN |
| Bore Length | 1.5630 INCHES NOMINAL SECOND END IN |
| Bore Length | 1.8130 INCHES NOMINAL FIRST END IN |
| Key Width | 0.250 INCHES NOMINAL FIRST END IN |
| Key Width | 0.250 INCHES NOMINAL SECOND END IN |
| Design Type | INTERNAL GEAR |
| Taper Minor Diameter | 0.9020 INCHES NOMINAL SECOND END IN |
| Keying Facility Type | KEYWAY FIRST END |
| Keying Facility Type | KEYWAY SECOND END |
| Outside Diameter | 5.935 INCHES NOMINAL IN |
| Features Provided | KEYWAY AND EXPOSED COUPLING BOLT TYPE AND STANDARD GRID SPRING AND SHROUDED COUPLING BOLT TYPE |
| Bore Shape | TAPERED SECOND END |
| Bore Shape | STRAIGHT FIRST END |
| Keying Facility Quantity | 1 SECOND END |
| Keying Facility Quantity | 1 FIRST END |
| Taper Largest Diameter | 1.0000 INCHES NOMINAL SECOND END IN |
| Bore Diameter | 1.2490 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 |
|---|---|
| SG-2740PC27 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SG-2740PC27 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 3010-00-276-7312 is a Coupling,shaft,flexible, manufactured by Circor Pumps North America Llc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-276-7312 has 1 manufacturer part number on file: SG-2740PC27 (Circor Pumps North America Llc).
Key specifications for SG-2740PC27: Keyway Depth: 0.6360 INCHES NOMINAL SECOND END IN; Keyway Depth: 0.7607 INCHES NOMINAL FIRST END IN; Bore Length: 1.5630 INCHES NOMINAL SECOND END IN; Bore Length: 1.8130 INCHES NOMINAL FIRST END IN. 18 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.