The Brake,multiple Disk, cataloged under National Stock Number 3040-01-429-4303, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mico Inc Mico West Div. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-429-4303 |
| Primary Part Number | 3D-131380-E |
| Item Name | Brake,multiple Disk |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Mico Inc Mico West Div |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Mounting Method | ANCHOR PLATE FLANGE |
| Mounting Hole Diameter | 0.781 INCHES NOMINAL IN |
| Bolt Circle Diameter | 12.500 INCHES NOMINAL IN |
| Rotating Disk Quantity | 7 |
| Operation Method | HYDRAULIC |
| 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 |
|---|---|
| 3D-131380-E | Mico Inc Mico West Div (USA) |
| YMD-6749 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| X-6295 | D/9 Drawing number reference only U.S. Government activity |
| 13-52-044 | 3/2 Design control — primary reference U.S. Government activity |
| 3D-13 13 80-E | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-429-4303 is a Brake,multiple Disk, manufactured by Mico Inc Mico West Div, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-429-4303 has 2 manufacturer part numbers on file: 3D-131380-E (Mico Inc Mico West Div), YMD-6749 (Appleton Marine Inc).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-506-0736. Verify interchangeability with system specifications before substitution.
Key specifications for 3D-131380-E: Mounting Hole Quantity: 4; Mounting Method: ANCHOR PLATE FLANGE; Mounting Hole Diameter: 0.781 INCHES NOMINAL IN; Overall Width: 8.080 INCHES NOMINAL IN. 6 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.