The Gear,spur, cataloged under National Stock Number 3020-00-320-0330, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-320-0330 |
| Primary Part Number | 818872 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.719 INCHES BOTH ENDS IN |
| Teeth Quantity | 128 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.968 INCHES FIRST END IN |
| Nominal Overall Length | 1.312 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-681 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Pitch Diameter | 7.9980 INCHES MINIMUM AND 8.0000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 8.125 INCHES IN |
| Material | STEEL COMP 175-145 OR STEEL UNS J03001 OR STEEL UNS J03501 OR STEEL UNS J04501 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.344 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-320-0330 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-320-0330 has 2 manufacturer part numbers on file: 818872 (Lockheed Martin Corporation Div Rms - Mitchel Field), 687803 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 818872: Bore Nominal Diameter: 3.719 INCHES BOTH ENDS IN; Teeth Quantity: 128; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 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.
NSN 3020-00-320-0330 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.