The Coupling Half,shaft, cataloged under National Stock Number 3010-01-503-7864, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Martin Sprocket and Gear Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3010-01-503-7864 |
| Primary Part Number | 4016-1.00IN BORE |
| Item Name | Coupling Half,shaft |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Martin Sprocket and Gear Inc |
| Status | ACTIVE |
| Bore Length | 1.1250 INCHES NOMINAL IN |
| Body Style | TOOTHED |
| Material Document and Classification | QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.810 INCHES NOMINAL IN |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT |
| Bore Diameter | 1.0000 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 906933 REV A | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
| 4016-1.00IN BORE PRIMARY | Martin Sprocket and Gear Inc (USA) |
| Reference | Meaning |
|---|---|
| 906933 | D/9 Drawing number reference only Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
NSN 3010-01-503-7864 is a Coupling Half,shaft, manufactured by Martin Sprocket and Gear Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-503-7864 has 2 manufacturer part numbers on file: 906933 REV A (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), 4016-1.00IN BORE (Martin Sprocket and Gear Inc).
Key specifications for 4016-1.00IN BORE: Bore Length: 1.1250 INCHES NOMINAL IN; Body Style: TOOTHED; Material Document and Classification: QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 1.125 INCHES NOMINAL IN. 8 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.