The Gear,spur, cataloged under National Stock Number 3020-00-671-5522, 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 Triumph Engine Control Systems Llc. Government technical data includes 8 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. 4 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 | 3020-00-671-5522 |
| Primary Part Number | 41239 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Teeth Quantity | 16 |
| Body Style | PLAIN, SOLID |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.5000 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 0.125 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 41239 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 3020-00-671-5522 is a Gear,spur, manufactured by Triumph Engine Control Systems Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-671-5522 has 1 manufacturer part number on file: 41239 (Triumph Engine Control Systems Llc).
4 possible matches (shared part number, not a government interchangeability claim): 4820-00-956-9123, 5305-01-243-5502, 4210-01-374-4941. Verify interchangeability with system specifications before substitution.
Key specifications for 41239: Teeth Quantity: 16; Body Style: PLAIN, SOLID; Style Designator: PROTRUDING HUBS; Pitch Diameter: 0.5000 INCHES NOMINAL IN. 8 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 3020-00-671-5522 has DEMIL Code Q. 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.