The Gear,spur, cataloged under National Stock Number 3020-01-085-5335, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-085-5335 |
| Primary Part Number | 4N4394 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Keyway Nominal Width | 0.250 INCHES BOTH ENDS IN |
| Teeth Quantity | 49 |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES FIRST END IN |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.859 INCHES IN |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.891 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 |
|---|---|
| 4N4394 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 150BME-9 | 5/9 Secondary reference Ingersoll-Rand European Sales Ltd |
| 150BME-9 | 5/9 Secondary reference Ingersoll-Rand European Sales Ltd |
| 150BME-9 | 5/9 Secondary reference Ingersoll Rand Co |
| 150BME-9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-085-5335 is a Gear,spur, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-085-5335 has 1 manufacturer part number on file: 4N4394 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4N4394: Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN; Teeth Quantity: 49; Body Style: WEBBED, OFFSET, SOLID; Bore Style: W/ KEYWAY BOTH ENDS. 10 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.