The Plate,frame Upper, cataloged under National Stock Number 4220-01-441-3426, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4220-01-441-3426 |
| Item Name | Plate,frame Upper |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 8044-1 | 3/9 Design control — primary reference Eaton Aviation Corporation |
| 8044-1 | C/1 Advisory reference — outside the item-of-supply concept Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 8044 | D/9 Drawing number reference only Eaton Aviation Corporation |
NSN 4220-01-441-3426 is a Plate,frame Upper, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5120-01-680-8650, 6525-01-683-7693. Verify interchangeability with system specifications before substitution.
Key specifications for 4220-01-441-3426: Overall Height: 16.250 INCHES NOMINAL IN; Overall Length: 25.600 INCHES NOMINAL IN; End Item Identification: 1740-01-258-3231; Material: STEEL CORROSION RESISTING. 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.