The Gear,spur, cataloged under National Stock Number 3020-01-468-9179, 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 Naval Sea Systems Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-468-9179 |
| Primary Part Number | 97A0266 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.251 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.188 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.063 INCHES SECOND END IN |
| Teeth Quantity | 100 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | W/ KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 1.125 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED SECOND END |
| Nominal Outside Diameter | 5.115 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.715 INCHES BOTH ENDS IN |
| Surface Treatment | OIL OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1035 OVERALL |
| Face Nominal Width | 0.500 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 |
|---|---|
| 97A0266 PRIMARY | Naval Sea Systems Command (USA) |
| 528-7378786 PC22 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 528-7378786 | D/9 Drawing number reference only Naval Sea Systems Command |
| YSS20100 | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
NSN 3020-01-468-9179 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-468-9179 has 2 manufacturer part numbers on file: 97A0266 (Naval Sea Systems Command), 528-7378786 PC22 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-468-9362, 5325-01-468-9368. Verify interchangeability with system specifications before substitution.
Key specifications for 97A0266: Keyway Nominal Width: 0.251 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.063 INCHES SECOND END IN; Teeth Quantity: 100. 17 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.