The Jacket,diver's Suit, cataloged under National Stock Number 4220-01-564-5903, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-564-5903 |
| Item Name | Jacket,diver's Suit |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Status | ACTIVE |
| Size Designation | LARGE |
| 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 |
|---|---|
| G675MF | 3/9 Design control — primary reference Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip |
NSN 4220-01-564-5903 is a Jacket,diver's Suit, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
Key specifications for 4220-01-564-5903: Size Designation: LARGE; Special Features: TWO-PIECE DESIGN ALLOWS FOR OPTIMAL PROTECTION IN A VARIETY OF WATER TEMPERATURES. THE STEP-IN JACKET CAN BE WORN ALONE OR PAIRED WITH A JOHN FOR A FULL-LENGTH PROTECTION AND A DOUBLE-LAYER OF INSULATION AROUND THE BODY'S CORE. THE INTERIOR COVERS 100-PERCENT OF BOTH PIECES, SO DIVERS ALWAYS GET THE THERMAL AND ANTI-MICROBIAL BENEFITS OF THE HIGH-PERFORMANCE NEOPRENE.. 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.