The Gear,worm, cataloged under National Stock Number 3020-01-325-4779, 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 Fairbanks Morse, Llc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-325-4779 |
| Primary Part Number | 16701720 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Keyway Nominal Width | 0.250 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.000 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.000 INCHES FIRST END IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES FIRST END IN |
| Face Type | CONCAVE |
| Style Designator | PROTRUDING HUB |
| Hub Style Designator | PLAIN FIRST END |
| Thread Form Quantity | 2 |
| Nominal Outside Diameter | 3.000 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.609 INCHES BOTH ENDS IN |
| Material | IRON CAST OVERALL |
| Face Nominal Width | 0.750 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 16701720 PRIMARY | Fairbanks Morse, Llc (USA) |
| CTD1474C | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| 16701720 | 3/9 Design control — primary reference U.S. Government activity |
| NTD1474C | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| CTD1474C | 5/9 Secondary reference U.S. Government activity |
| TD1474 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-325-4779 is a Gear,worm, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-325-4779 has 2 manufacturer part numbers on file: 16701720 (Fairbanks Morse, Llc), CTD1474C (Fairbanks Morse, Llc).
Key specifications for 16701720: Thread Form Direction: RIGHT-HAND; Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.000 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.000 INCHES FIRST END IN. 14 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.
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.