The Gear,bevel, cataloged under National Stock Number 3020-01-356-6887, 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 Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-356-6887 |
| Primary Part Number | A-555598 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.500 INCHES BOTH ENDS IN |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS |
| Nominal Outside Diameter | 12.750 INCHES IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| A-555598 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| TYPE VBH-SBM-67 PC 17 | Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA) |
| Reference | Meaning |
|---|---|
| TYPE VBH-SBM-67 PC 17 | 5/9 Secondary reference Timken Gears & Services Inc. Div Philadelphia Gear |
NSN 3020-01-356-6887 is a Gear,bevel, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-356-6887 has 2 manufacturer part numbers on file: A-555598 (Timken Gears & Services Inc. Div Philadelphia Gear), TYPE VBH-SBM-67 PC 17 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company).
Key specifications for A-555598: Bore Nominal Diameter: 3.500 INCHES BOTH ENDS IN; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS; Style Designator: HUBLESS. 6 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.