The Cap,ignition Distribution, cataloged under National Stock Number 2920-00-855-5551, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2920-00-855-5551 |
| Item Name | Cap,ignition Distribution |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Status | ACTIVE |
| Spark Plug Lead Accommodation Quantity | 4 |
| Thread Location | INTERNAL |
| Thread Direction | RIGHT-HAND |
| Application Design | MAGNETO |
| Spark Plug Lead Connection Type | THREADED |
| 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 |
|---|---|
| LY2430A | 3/9 Design control — primary reference U.S. Government activity |
| 55973 | 5/2 Secondary reference U.S. Government activity |
| JHP110-280 | 5/9 Secondary reference Hollingsworth John R Co |
| LY2430A | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
NSN 2920-00-855-5551 is a Cap,ignition Distribution, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-933-0755, 5350-01-533-9383, 5315-01-534-2548. Verify interchangeability with system specifications before substitution.
Key specifications for 2920-00-855-5551: Spark Plug Lead Accommodation Quantity: 4; Thread Location: INTERNAL; Thread Direction: RIGHT-HAND; Application Design: MAGNETO. 5 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.