The Plate,retaining,shaft, cataloged under National Stock Number 3040-01-415-8316, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-415-8316 |
| Primary Part Number | 218015990 |
| Item Name | Plate,retaining,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Mounting Hole Diameter | 0.406 INCHES NOMINAL IN |
| Aperture Diameter | 1.094 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 1.125 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 |
|---|---|
| 218015990 PRIMARY | Naval Sea Systems Command (USA) |
| 556-6406591-MPAD-A49 | Naval Sea Systems Command (USA) |
| 556-6406591-MPAD-D49 | Naval Sea Systems Command (USA) |
| 211016577 PRIMARY | Naval Sea Systems Command (USA) |
| 556-6406591-MPAD-C49 | Naval Sea Systems Command (USA) |
| 556-6406591-MPAD-B49 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 556-6406591 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-415-8316 is a Plate,retaining,shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-415-8316 has 6 manufacturer part numbers on file: 218015990 (Naval Sea Systems Command), 556-6406591-MPAD-A49 (Naval Sea Systems Command), 556-6406591-MPAD-D49 (Naval Sea Systems Command), 211016577 (Naval Sea Systems Command), 556-6406591-MPAD-C49 (Naval Sea Systems Command) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 3040-01-415-8317. Verify interchangeability with system specifications before substitution.
Key specifications for 218015990: Mounting Hole Quantity: 2; Mounting Hole Diameter: 0.406 INCHES NOMINAL IN; Aperture Diameter: 1.094 INCHES NOMINAL IN; Special Features: ONE 0.312 IN. DIA UNTHD HOLE SPACED 0.875 IN. C TO C WITH BORE; MTG HOLE SPACING: 1.812 IN. BETWEEN CENTERS; SHAPE: OVAL IN. 5 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.