The Gear Set,worm and Worm Wheel,mat, cataloged under National Stock Number 3020-01-253-7669, 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 Secs 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-253-7669 |
| Primary Part Number | 2439856-1 |
| Item Name | Gear Set,worm and Worm Wheel,mat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Secs Inc |
| Status | ACTIVE |
| Component Quantity | 2 |
| End Item Source | 03640 |
| End Item Name | FORWARD LOOKING INFRARED IMAGEFINDER |
| 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 |
|---|---|
| 2439856-1 | Secs Inc (USA) |
| Reference | Meaning |
|---|---|
| 2439856-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-253-7669 is a Gear Set,worm and Worm Wheel,mat, manufactured by Secs Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-253-7669 has 1 manufacturer part number on file: 2439856-1 (Secs Inc).
Key specifications for 2439856-1: Component Quantity: 2; End Item Source: 03640; End Item Name: FORWARD LOOKING INFRARED IMAGEFINDER; Special Features: CONSISTS OF 1 GEAR,WORM,P/N 2439528-1; AND 1 GEAR,WORM WHEEL,P/N 2439529-1. 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 3020-01-253-7669 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.