The Gear Set,worm and Worm Wheel,mat, cataloged under National Stock Number 3020-01-253-7668, 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 Southern Gear & Machine Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-253-7668 |
| Primary Part Number | 2439855-1 |
| Item Name | Gear Set,worm and Worm Wheel,mat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Southern Gear & Machine Inc |
| Status | ACTIVE |
| Component Quantity | 2 |
| End Item Source | 03640 |
| End Item Name | FORWARD LOOKING INFRARED IMAGEFINDER |
| 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 |
|---|---|
| 2439855-1 | Southern Gear & Machine Inc (USA) |
| Reference | Meaning |
|---|---|
| 2439855-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-253-7668 is a Gear Set,worm and Worm Wheel,mat, manufactured by Southern Gear & Machine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-253-7668 has 1 manufacturer part number on file: 2439855-1 (Southern Gear & Machine Inc).
Key specifications for 2439855-1: Component Quantity: 2; End Item Source: 03640; End Item Name: FORWARD LOOKING INFRARED IMAGEFINDER; Special Features: CONSISTS OF 1 WORM GEARP/N 2439842-1; AND 1 GEAR,WORM WHEEL,P/N 2439841-1. 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.
NSN 3020-01-253-7668 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.