The Gear,spur, cataloged under National Stock Number 3020-01-468-8765, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-468-8765 |
| Primary Part Number | 528-7378786 PC23 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.191 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.688 INCHES BOTH ENDS IN |
| Teeth Quantity | 50 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.269 INCHES SECOND END IN |
| First Step Nominal Length | 0.700 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | AISI 1215 HRS ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.060 INCHES SECOND END IN |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.969 INCHES SECOND END IN |
| Nominal Outside Diameter | 2.600 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.414 INCHES BOTH ENDS IN |
| Surface Treatment | OIL OVERALL |
| End Nominal Diameter | 0.773 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1215 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 |
|---|---|
| 528-7378786 PC23 PRIMARY | Naval Sea Systems Command (USA) |
| 97A0267 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 528-7378786 | D/9 Drawing number reference only Naval Sea Systems Command |
| YSS2050 | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
NSN 3020-01-468-8765 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-468-8765 has 2 manufacturer part numbers on file: 528-7378786 PC23 (Naval Sea Systems Command), 97A0267 (Naval Sea Systems Command).
6 possible matches (shared part number, not a government interchangeability claim): 5315-01-468-9130, 5315-01-468-9133, 5315-01-468-9137. Verify interchangeability with system specifications before substitution.
Key specifications for 528-7378786 PC23: Keyway Nominal Width: 0.191 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.688 INCHES BOTH ENDS IN; Teeth Quantity: 50; Body Style: PLAIN, WITH LIGHTENING HOLES. 21 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.