The Gear Sector,spur, cataloged under National Stock Number 3020-01-193-0509, 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 Tri-Tech Machine Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-193-0509 |
| Primary Part Number | 245244 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Tri-Tech Machine Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 245244 PRIMARY | Tri-Tech Machine Inc (USA) |
| Reference | Meaning |
|---|---|
| 245244 | 5/9 Secondary reference Lockheed Martin Corp Electronics and Missiles Div |
NSN 3020-01-193-0509 is a Gear Sector,spur, manufactured by Tri-Tech Machine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-193-0509 has 1 manufacturer part number on file: 245244 (Tri-Tech Machine Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-359-4575. Verify interchangeability with system specifications before substitution.
Key specifications for 245244: Special Features: NOT CASEHARDENED. 0 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 3020-01-193-0509 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.