The Coupling Half,shaft, cataloged under National Stock Number 3010-01-377-2869, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3010-01-377-2869 |
| Primary Part Number | 4X178 |
| Item Name | Coupling Half,shaft |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Bore Diameter | 0.5000 INCHES NOMINAL IN |
| Material | IRON CAST |
| 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 |
|---|---|
| 4X178 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| 4387G1000 FIND 31 | General Crane and Hoist, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4X178 | C/1 Advisory reference — outside the item-of-supply concept Lovejoy, Llc Div Lovejoy |
NSN 3010-01-377-2869 is a Coupling Half,shaft, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-377-2869 has 2 manufacturer part numbers on file: 4X178 (W.w. Grainger, Inc. Div Government Sales Division), 4387G1000 FIND 31 (General Crane and Hoist, Inc.).
Key specifications for 4X178: Bore Diameter: 0.5000 INCHES NOMINAL IN; Material: IRON CAST. 2 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.