The Gear,spur, cataloged under National Stock Number 3020-00-121-7325, 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 Instruments and Flight Research, Inc.. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-121-7325 |
| Primary Part Number | 539366 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Instruments and Flight Research, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.690 INCHES BOTH ENDS IN |
| Teeth Quantity | 84 |
| Body Style | WEBBED, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS |
| Material Document and Classification | AGMA 242.02,CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.2000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 4.300 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | IRON MALLEABLE OVERALL |
| Face Nominal Width | 0.375 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 |
|---|---|
| 539366 PRIMARY | Instruments and Flight Research, Inc. (USA) |
NSN 3020-00-121-7325 is a Gear,spur, manufactured by Instruments and Flight Research, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-121-7325 has 1 manufacturer part number on file: 539366 (Instruments and Flight Research, Inc.).
Key specifications for 539366: Bore Nominal Diameter: 2.690 INCHES BOTH ENDS IN; Teeth Quantity: 84; Body Style: WEBBED, SOLID; Bore Style: PLAIN BOTH ENDS. 12 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.