The Orifice Spark Advance Control VA, cataloged under National Stock Number 2990-01-485-7867, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Naval Sea Systems Command. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-485-7867 |
| Primary Part Number | 7052990 |
| Item Name | Orifice Spark Advance Control VA |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Vehicle Design Control Activity | 53711 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7052990 PRIMARY | Naval Sea Systems Command (USA) |
NSN 2990-01-485-7867 is a Orifice Spark Advance Control VA, manufactured by Naval Sea Systems Command, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-485-7867 has 1 manufacturer part number on file: 7052990 (Naval Sea Systems Command).
Key specifications for 7052990: Vehicle Design Control Activity: 53711; Special Features: MATERIAL CRES, AISI TYPE 303; PASSIVATE IN ACCORDANCE WITH ASTM A 380; CLASSIFICATION NUMBER 101; COMMERCIAL INSPECTION REQUIRED; ALL DIMENTIONS IN INCHES; LENGTH 0.312; THREADED 0.344 32 UNS 2A; MAJOR DIA 0.343, PITCH DIA 0.323; SLOT SIZE 0.062; DEPTH OF SLOT 0.049 - 0.093 A; End Item Identification: E/I TORPEDO, CONSU.; ORIFICE. 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 2990-01-485-7867 has DEMIL Code B. 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.