The Spark Plug, cataloged under National Stock Number 2920-01-520-8291, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is E. P. Barrus Limited Div Special Products. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2920-01-520-8291 |
| Primary Part Number | 33-941 |
| Item Name | Spark Plug |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | E. P. Barrus Limited Div Special Products |
| Status | ACTIVE |
| Usage Design | ENGINE OTHER THAN AIRCRAFT |
| Body Style | UNSHIELDED, SOLID POST, GASKET SEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 33-941 | E. P. Barrus Limited Div Special Products (GBR) |
| Reference | Meaning |
|---|---|
| 33-941 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2920-01-520-8291 is a Spark Plug, manufactured by E. P. Barrus Limited Div Special Products, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-520-8291 has 1 manufacturer part number on file: 33-941 (E. P. Barrus Limited Div Special Products).
Key specifications for 33-941: Usage Design: ENGINE OTHER THAN AIRCRAFT; Body Style: UNSHIELDED, SOLID POST, GASKET SEAT; End Item Identification: MERCURY MARINE ENGINES. 2 specifications are 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.