The Housing Assembly,primary, cataloged under National Stock Number 4220-01-040-3866, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Biomarine Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4220-01-040-3866 |
| Primary Part Number | 200-718 |
| Item Name | Housing Assembly,primary |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Biomarine Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 1 SCREW,SEAL P/N MS3212-21-316SS,4 SCREW,PAN HD P/N MS51597-13B-316SS,1 STRAP @ASSY P/N 200-605,1 PLATE,STRAP P/N 200-600,1 DECAL P/N 200-721,1 HOUSING,DISPLAY P/N 300-413 |
| 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 |
|---|---|
| 200-718 PRIMARY | Biomarine Inc (USA) |
| Reference | Meaning |
|---|---|
| 200-718 | 5/9 Secondary reference Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip |
NSN 4220-01-040-3866 is a Housing Assembly,primary, manufactured by Biomarine Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-040-3866 has 1 manufacturer part number on file: 200-718 (Biomarine Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5315-01-160-1839, 4220-01-241-4904, 2040-01-662-5779. Verify interchangeability with system specifications before substitution.
Key specifications for 200-718: General Characteristics Item Description: CONSISTS OF 1 SCREW,SEAL P/N MS3212-21-316SS,4 SCREW,PAN HD P/N MS51597-13B-316SS,1 STRAP @ASSY P/N 200-605,1 PLATE,STRAP P/N 200-600,1 DECAL P/N 200-721,1 HOUSING,DISPLAY P/N 300-413. 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.