The Gear,spur, cataloged under National Stock Number 3020-01-144-3468, 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. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-144-3468 |
| Primary Part Number | 7239819P1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS0.500 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.750 INCHES FIRST END0.750 INCHES FIRST END IN |
| Teeth Quantity | 8080 |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLIDPLAIN, SOLID |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Precision Classification | QUALITY NUMBER 11QUALITY NUMBER 11 |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.625 INCHES0.625 INCHES IN |
| Style Designator | PROTRUDING HUBPROTRUDING HUB |
| Material Document and Classification | QQ-S-763,CLASS 416,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALLQQ-S-763,CLASS 416,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.0000 INCHES NOMINAL4.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARDSTANDARD |
| Mounting Hole Thread Quantity Per Inch | 32 TRANSVERSELY THROUGH HUB FIRST END32 TRANSVERSELY THROUGH HUB FIRST END |
| Surface Treatment | PASSIVATE OVERALLPASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST ENDUNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Face Nominal Width | 0.250 INCHES0.250 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 |
|---|---|
| 7239819P1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 3020-01-144-3468 is a Gear,spur, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-144-3468 has 1 manufacturer part number on file: 7239819P1 (Lockheed Martin Corporation Div Rms).
Key specifications for 7239819P1: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS0.500 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.750 INCHES FIRST END0.750 INCHES FIRST END IN; Teeth Quantity: 8080; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.