The Plate,retaining,shaft, cataloged under National Stock Number 3040-00-341-1240, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U.s. Graphite Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-341-1240 |
| Primary Part Number | G18-187 |
| Item Name | Plate,retaining,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U.s. Graphite Corporation |
| Status | ACTIVE |
| Mounting Hole Quantity | 6 |
| Mounting Hole Diameter | 0.234 INCHES NOMINAL IN |
| Shape | ROUND |
| Outside Diameter | 9.749 INCHES NOMINAL IN |
| Aperture Diameter | 9.000 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 0.375 INCHES NOMINAL 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 |
|---|---|
| G18-187 PRIMARY | U.s. Graphite Corporation (USA) |
| Reference | Meaning |
|---|---|
| 168B970P1 | 5/9 Secondary reference Space Age Engineering Co Inc |
| 168B970P1 | 5/9 Secondary reference General Electric Company |
| 168B970P1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
NSN 3040-00-341-1240 is a Plate,retaining,shaft, manufactured by U.s. Graphite Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-341-1240 has 1 manufacturer part number on file: G18-187 (U.s. Graphite Corporation).
Key specifications for G18-187: Mounting Hole Quantity: 6; Mounting Hole Diameter: 0.234 INCHES NOMINAL IN; Shape: ROUND; Outside Diameter: 9.749 INCHES NOMINAL IN. 7 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.