The Compensator,buoyancy,diver's, cataloged under National Stock Number 4220-01-683-4790, 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 Firstspear, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-683-4790 |
| Primary Part Number | 500-15-00183-0001-02 |
| Item Name | Compensator,buoyancy,diver's |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Firstspear, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | FRONT AND BACK, COVERT BLACK |
| Supplementary Features | SMALL SIZE |
| Color | BLACK |
| 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 |
|---|---|
| 500-15-00183-0001-02 | Allied Technology International P/l (AUS) |
| 500-15-00183-0001-02 PRIMARY | Firstspear, Llc (USA) |
| 00-4-3429 | Australian Defence Apparel Pty Ltd (AUS) |
NSN 4220-01-683-4790 is a Compensator,buoyancy,diver's, manufactured by Firstspear, Llc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-683-4790 has 3 manufacturer part numbers on file: 500-15-00183-0001-02 (Allied Technology International P/l), 500-15-00183-0001-02 (Firstspear, Llc), 00-4-3429 (Australian Defence Apparel Pty Ltd).
Key specifications for 500-15-00183-0001-02: General Characteristics Item Description: FRONT AND BACK, COVERT BLACK; Supplementary Features: SMALL SIZE; Color: BLACK; Special Features: 18 INCH HOSE, SWIMMER CUT IN. 3 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.