The Gear,spur, cataloged under National Stock Number 3020-00-239-3797, 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 Control Flow, Inc. Dba Control Flow Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-239-3797 |
| Primary Part Number | N277ALT6-112 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Control Flow, Inc. Dba Control Flow Inc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.625 INCHES BOTH ENDS IN |
| Teeth Quantity | 80 |
| Body Style | WEBBED, SOLID |
| Precision Classification | QUALITY NUMBER 12 |
| Nominal Overall Length | 3.625 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 16.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 2.000 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 |
|---|---|
| N277ALT6-112 | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| B4228-2 | 3/9 Design control — primary reference Control Flow, Inc. Dba Control Flow Inc |
| B4228-2 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
| N277ALT6-112 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 3020-00-239-3797 is a Gear,spur, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-239-3797 has 1 manufacturer part number on file: N277ALT6-112 (Control Flow, Inc. Dba Control Flow Inc).
Key specifications for N277ALT6-112: Keyway Nominal Width: 0.625 INCHES BOTH ENDS IN; Teeth Quantity: 80; Body Style: WEBBED, SOLID; Precision Classification: QUALITY NUMBER 12. 11 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.