The Gear,spur, cataloged under National Stock Number 3020-01-151-4496, 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 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-151-4496 |
| Primary Part Number | 518-4674791 ITEM 10 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | UNABLE TO DECODE |
| Teeth Quantity | 36 |
| Body Style | WEBBED, SOLID |
| Bore Style | UNABLE TO DECODE |
| Nominal Distance Between Body Face and Protruding Hub End | UNABLE TO DECODE |
| Style Designator | BELL SHAPE BODY, PROTRUDING HUB |
| Pitch Diameter | 1.6363 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | UNABLE TO DECODE |
| Nominal Outside Diameter | 1.727 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Body Recess Nominal Depth | UNABLE TO DECODE |
| Face Nominal Width | 0.312 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 |
|---|---|
| 518-4674791 ITEM 10 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 4674791A-0010 | 3/2 Design control — primary reference U.S. Government activity |
| 518-4674791 | D/9 Drawing number reference only U.S. Government activity |
| 87624-1506 ITEM 10 | 3/9 Design control — primary reference U.S. Government activity |
| 518-4674791 ITEM 10 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-151-4496 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-151-4496 has 1 manufacturer part number on file: 518-4674791 ITEM 10 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-151-4498, 3020-01-151-5668, 3020-01-154-2133. Verify interchangeability with system specifications before substitution.
Key specifications for 518-4674791 ITEM 10: Bore Nominal Diameter: UNABLE TO DECODE; Teeth Quantity: 36; Body Style: WEBBED, SOLID; Bore Style: UNABLE TO DECODE. 13 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.