The Sprocket Wheel, cataloged under National Stock Number 3020-01-224-8528, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-224-8528 |
| Primary Part Number | EX5021-24 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services |
| Status | ACTIVE |
| Teeth Row Quantity | 1 |
| Furnished Items | KEYING FACILITY |
| 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 |
|---|---|
| EX5021-24 PRIMARY | Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services (USA) |
| Reference | Meaning |
|---|---|
| EX5021-24 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3000140 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3020-01-224-8528 is a Sprocket Wheel, manufactured by Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-224-8528 has 1 manufacturer part number on file: EX5021-24 (Marine Hydraulics International, Llc Dba Mhi Ship Repair & Services).
1 possible match (shared part number, not a government interchangeability claim): 6550-01-713-5236. Verify interchangeability with system specifications before substitution.
Key specifications for EX5021-24: Teeth Row Quantity: 1; Furnished Items: KEYING FACILITY. 2 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.