The Fairing,sonar Dome, cataloged under National Stock Number 5845-01-421-6985, is classified within Federal Supply Class 5845 (Underwater Sound Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5845-01-421-6985 |
| Primary Part Number | 497A75911-19 |
| Item Name | Fairing,sonar Dome |
| FSC / FSG | 5845 / 58 — Underwater Sound Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Material | GLASS FIBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 497A75911-19 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 497A75911-19 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 5845-01-421-6985 is a Fairing,sonar Dome, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5845, Underwater Sound Equipment. Status: active.
NSN 5845-01-421-6985 has 1 manufacturer part number on file: 497A75911-19 (Lockheed Martin Corporation Div Rms).
Key specifications for 497A75911-19: Overall Length: 52.230 INCHES NOMINAL IN; End Item Identification: AN/BSY-2(V); Material: GLASS FIBER. 1 specification is 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.
NSN 5845-01-421-6985 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.