The Trousers,diver's Suit, cataloged under National Stock Number 4220-01-441-3499, 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 Henderson Aquatics Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4220-01-441-3499 |
| Primary Part Number | US853MB-LT |
| Item Name | Trousers,diver's Suit |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Henderson Aquatics Inc |
| Status | ACTIVE |
| Entrance Location | FRONT |
| Design Type | ONE-PIECE |
| Attached Cuffs | NOT INCLUDED |
| Size Designation | SMALL |
| Leg Lacing Provision | NOT INCLUDED |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Furnished Items and Quantity | BREAST PANELS 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FMNPFJ442-1GL-S | Harveys Skin Diving Suits Inc (USA) |
| US853MB-LT PRIMARY | Henderson Aquatics Inc (USA) |
| 3462AS104-7 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| WRST312-S PRIMARY | Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla (USA) |
| Reference | Meaning |
|---|---|
| 3462AS104 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4220-01-441-3499 is a Trousers,diver's Suit, manufactured by Henderson Aquatics Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-441-3499 has 4 manufacturer part numbers on file: FMNPFJ442-1GL-S (Harveys Skin Diving Suits Inc), US853MB-LT (Henderson Aquatics Inc), 3462AS104-7 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), WRST312-S (Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla).
5 possible matches (shared part number, not a government interchangeability claim): 4220-01-441-3502, 4220-01-441-3683, 4220-01-441-3686. Verify interchangeability with system specifications before substitution.
Key specifications for US853MB-LT: Entrance Location: FRONT; Design Type: ONE-PIECE; Attached Cuffs: NOT INCLUDED; Size Designation: SMALL. 7 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.
NSN 4220-01-441-3499 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.