The Gear,spur, cataloged under National Stock Number 3020-00-468-3175, 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 14 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-468-3175 |
| Primary Part Number | DD45S6505-21ALT1PC20 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.812 INCHES FIRST END IN |
| Teeth Quantity | 72 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 2.312 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.250 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 |
|---|---|
| DD45S6505-21ALT1PC20 PRIMARY | Naval Sea Systems Command (USA) |
| 11T2257LPC20 PRIMARY | Naval Sea Systems Command (USA) |
| 2427L7PC20 PRIMARY | Dynalec Corporation (USA) |
| 228-65-909PC20 PRIMARY | Naval Sea Systems Command (USA) |
| 2162L9PC20 PRIMARY | Dynalec Corporation (USA) |
| DD692S6505-21PC20 PRIMARY | Naval Sea Systems Command (USA) |
| 313-6505-12759PC20 PRIMARY | Naval Sea Systems Command (USA) |
| 405-6505-590955PC20 PRIMARY | Naval Sea Systems Command (USA) |
| 2162L3PC20 PRIMARY | Dynalec Corporation (USA) |
| SK58PCT3-20 PRIMARY | Dynalec Corporation (USA) |
| 1021 PRIMARY | Dynalec Corporation (USA) |
| 2162PC20 PRIMARY | Dynalec Corporation (USA) |
| 2162LPC20 PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| DD692S6505-21PC20 | 5/9 Secondary reference U.S. Government activity |
| 228-65-909PC20 | 5/9 Secondary reference U.S. Government activity |
| SK58PCT3-20 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 1021 | 5/9 Secondary reference The Electric Tachometer Corp. |
| DD445S6505-21ALT1PC20 | 5/9 Secondary reference U.S. Government activity |
| 11T2257LPC20 | 5/9 Secondary reference U.S. Government activity |
| 313-6505-12759PC20 | 5/9 Secondary reference U.S. Government activity |
| 405-6505-590955PC20 | 5/9 Secondary reference U.S. Government activity |
| 2162L9PC20 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 2162PC20 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 2162LPC20 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 2427L7PC20 | 5/9 Secondary reference The Electric Tachometer Corp. |
| 2162L3PC20 | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 3020-00-468-3175 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-468-3175 has 13 manufacturer part numbers on file: DD45S6505-21ALT1PC20 (Naval Sea Systems Command), 11T2257LPC20 (Naval Sea Systems Command), 2427L7PC20 (Dynalec Corporation), 228-65-909PC20 (Naval Sea Systems Command), 2162L9PC20 (Dynalec Corporation) and 8 more.
Key specifications for DD45S6505-21ALT1PC20: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.812 INCHES FIRST END IN; Teeth Quantity: 72; Body Style: PLAIN, SOLID. 14 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.