The Gear,bevel, cataloged under National Stock Number 3020-00-404-8458, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-404-8458 |
| Primary Part Number | YSM12F15HX1/2 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Keyway Nominal Width | 0.1255 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.5003 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.1000 INCHES SECOND END IN |
| Teeth Quantity | 15 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 45.0000 DEGREES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.5000 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 0.8565 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Pitch Diameter | 1.2500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 1.3700 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.3130 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.2700 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 |
|---|---|
| YSM12F15HX1/2 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| HLK101Y | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 12M15H | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
| 122585 | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
NSN 3020-00-404-8458 is a Gear,bevel, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-404-8458 has 2 manufacturer part numbers on file: YSM12F15HX1/2 (Emerson Electric Co Browning Mfg Div), HLK101Y (Altra Industrial Motion Corp.).
1 possible match (shared part number, not a government interchangeability claim): 7330-01-467-7718. Verify interchangeability with system specifications before substitution.
Key specifications for YSM12F15HX1/2: Keyway Nominal Width: 0.1255 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.5003 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.1000 INCHES SECOND END IN; Teeth Quantity: 15. 18 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.