The Compass,magnetic,mounted, cataloged under National Stock Number 6605-01-477-8103, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ritchie E S and Sons Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6605-01-477-8103 |
| Primary Part Number | MG-11D |
| Item Name | Compass,magnetic,mounted |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Ritchie E S and Sons Inc |
| Status | ACTIVE |
| Design Type | TOP READING |
| Instrument Type | DRY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MG-11D PRIMARY | Ritchie E S and Sons Inc (USA) |
| Reference | Meaning |
|---|---|
| MG-11D-R | 5/9 Secondary reference Ritchie E S and Sons Inc |
NSN 6605-01-477-8103 is a Compass,magnetic,mounted, manufactured by Ritchie E S and Sons Inc, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-477-8103 has 1 manufacturer part number on file: MG-11D (Ritchie E S and Sons Inc).
Key specifications for MG-11D: Design Type: TOP READING; Special Features: ACCURACY TO +/-0.5 DEG; DASH OR DECK MOUNT; GRAPHIC OFF COURSE INDICATOR, ACCURATE THROUGH 45 DEG PITCH AND ROLL; SIMPLE OPERATION, 3 BUTTONS, 3 FUNCTIONS; REQUIRES 12 VOLT DC POWER SOURCE; COMPENSATION MODE FOR ON BOARD DEVIATION; Instrument Type: DRY. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.