The Gear,worm, cataloged under National Stock Number 3020-00-274-2889, 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 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through both NSN and commercial part number lookups. 25 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-274-2889 |
| Primary Part Number | NAFB3796A |
| 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 |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Nominal Diameter | 0.406 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Pitch Diameter | 2.7110 INCHES NOMINAL IN |
| Thread Form Quantity | 2 |
| Pressure Angle | 30.0000 DEGREES |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 2.625 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 |
|---|---|
| NAFB3796A PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| AFC3796A | 5/9 Secondary reference U.S. Government activity |
| CAFB3796A | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
| 15AF9B1370A1PC14 | 5/9 Secondary reference U.S. Government activity |
| AFB3796A | 5/9 Secondary reference U.S. Government activity |
| 13AF10B1370APC14 | 5/9 Secondary reference U.S. Government activity |
| 10AF10C1370BPC14 | 5/9 Secondary reference U.S. Government activity |
| MAFB1370APC14 | 5/9 Secondary reference U.S. Government activity |
| 22AF10C1370BPC14 | 5/9 Secondary reference U.S. Government activity |
| 33SAF10B1370BPC14 | 5/9 Secondary reference U.S. Government activity |
| 15AF9B1370BPC14 | 5/9 Secondary reference U.S. Government activity |
| CAFB3796A2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 33SAF10B1370APC14 | 5/9 Secondary reference U.S. Government activity |
| 13AF10B1370CPC14 | 5/9 Secondary reference U.S. Government activity |
| CAFB3796A | 3/9 Design control — primary reference U.S. Government activity |
| AFA3796A | 5/9 Secondary reference U.S. Government activity |
| 9AF9B1370BPC14 | 5/9 Secondary reference U.S. Government activity |
| 8AFA1370APC50 | 5/9 Secondary reference U.S. Government activity |
| 16609137 ITEM 9 | 5/9 Secondary reference U.S. Government activity |
| 8AFA1370BPC50 | 5/9 Secondary reference U.S. Government activity |
| 22AF10C1370A1PC14 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-274-2889 is a Gear,worm, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-274-2889 has 1 manufacturer part number on file: NAFB3796A (Fairbanks Morse, Llc).
Key specifications for NAFB3796A: Thread Form Direction: RIGHT-HAND; Bore Style: PLAIN BOTH ENDS; Mounting Hole Nominal Diameter: 0.406 INCHES TRANSVERSELY THROUGH HUB FIRST END IN; Pitch Diameter: 2.7110 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 3020-00-274-2889 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.