The Sprocket Wheel, cataloged under National Stock Number 3020-01-221-1552, 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 Northrop Grumman Systems Corporation. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 03956) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-221-1552 |
| Primary Part Number | PL1806903 FIND 3 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1807034-37 | Northrop Grumman Systems Corporation (USA) |
| PL1806903 FIND 3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| PL1806903 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
| 3MTB442S-25 | C/1 Advisory reference — outside the item-of-supply concept W. M. Berg, Inc. |
NSN 3020-01-221-1552 is a Sprocket Wheel, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-221-1552 has 2 manufacturer part numbers on file: 1807034-37 (Northrop Grumman Systems Corporation), PL1806903 FIND 3 (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-221-2022, 2030-01-240-6160. Verify interchangeability with system specifications before substitution.
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.