The Ballhead Assembly, cataloged under National Stock Number 2990-00-391-7544, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-391-7544 |
| Item Name | Ballhead Assembly |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF ONE BALL HEAD COVER P/N 010418,ONE WASHER P/N 010454,ONE HEAD P/N 010561,TWO FLYWEIGHT P/N 196098,TWO FLYBALL ARM PIN,TWO FLYBALL ARM P/N 196019,TWO NO. 5/O TAPER PINS P/N 184315A A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 010585 | 3/9 Design control — primary reference Woodward, Inc. Div Fuel Systems and Controls |
NSN 2990-00-391-7544 is a Ballhead Assembly, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-214-4677, 6505-01-491-8778. Verify interchangeability with system specifications before substitution.
Key specifications for 2990-00-391-7544: General Characteristics Item Description: CONSISTS OF ONE BALL HEAD COVER P/N 010418,ONE WASHER P/N 010454,ONE HEAD P/N 010561,TWO FLYWEIGHT P/N 196098,TWO FLYBALL ARM PIN,TWO FLYBALL ARM P/N 196019,TWO NO. 5/O TAPER PINS P/N 184315A A. 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.
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.