The Gear,spur, cataloged under National Stock Number 3020-00-266-7733, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-266-7733 |
| Primary Part Number | N374PC898 |
| 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 | 0.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.250 INCHES SECOND END IN |
| Hub Nominal Diameter | 2.500 INCHES FIRST END IN |
| Teeth Quantity | 138 |
| Body Style | PLAIN, SOLID |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.188 INCHES SECOND END IN |
| Nominal Overall Length | 2.750 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 23.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Thread Quantity Per Inch | 16 TRANSVERSELY THROUGH HUB FIRST END |
| Pressure Angle | 14.5000 DEGREES |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.875 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 |
|---|---|
| N374PC898 | Control Flow, Inc. Dba Control Flow Inc (USA) |
| Reference | Meaning |
|---|---|
| D2115 | 3/9 Design control — primary reference Control Flow, Inc. Dba Control Flow Inc |
| N374PC898 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
| D2115 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 3020-00-266-7733 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 3020-00-266-7733 has 1 manufacturer part number on file: N374PC898 (Control Flow, Inc. Dba Control Flow Inc).
1 possible match (shared part number, not a government interchangeability claim): 4540-01-221-9298. Verify interchangeability with system specifications before substitution.
Key specifications for N374PC898: Keyway Nominal Width: 0.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.250 INCHES SECOND END IN; Hub Nominal Diameter: 2.500 INCHES FIRST END IN; Teeth Quantity: 138. 16 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.