The Firing Circuit Asse, cataloged under National Stock Number 1220-01-252-1521, is classified within Federal Supply Class 1220 (Fire Control Computing Sights and Devices) of the Fire Control Equipment group. The manufacturer of record is Naval Sea Systems Command. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Firing Circuit Asse |
| FSC / FSG | 1220 — Fire Control Computing Sights and Devices (FSG 12) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Lockheed Martin Librascope Corporation (CAGE 36090) |
| Parameter | Value |
|---|---|
| NSN | 1220-01-252-1521 |
| Primary Part Number | 6253227 |
| Item Name | Firing Circuit Asse |
| FSC / FSG | 1220 / 12 — Fire Control Computing Sights and Devices |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 6253227 PRIMARY | Naval Sea Systems Command (USA) |
| L200016592 | Lockheed Martin Librascope Corporation (USA) |
NSN 1220-01-252-1521 is a Firing Circuit Asse, manufactured by Naval Sea Systems Command, classified under FSC 1220, Fire Control Computing Sights and Devices. Status: active.
NSN 1220-01-252-1521 has 2 manufacturer part numbers on file: 6253227 (Naval Sea Systems Command), L200016592 (Lockheed Martin Librascope Corporation).
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 1220-01-252-1521 has DEMIL Code C. 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.