The Gear,spur, cataloged under National Stock Number 3020-01-280-5004, 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. Government technical data includes 28 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 | 3020-01-280-5004 |
| Primary Part Number | 717612271-009 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.350 INCHES BOTH ENDS IN |
| Teeth Quantity | 210 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 4.000 INCHES SECOND END IN |
| Counterbore Nominal Diameter | 3.550 INCHES FIRST END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Mounting Hole Type and Quantity | 8 THREADED AXIALLY THROUGH BODY FIRST END |
| First Step Nominal Length | 0.125 INCHES FIRST END IN |
| Style Designator | HUBLESS, RECESSED BODY |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.3750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 4.160 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Mounting Hole Nominal Thread Size | 0.086 INCHES AXIALLY THROUGH BODY FIRST END IN |
| End Nominal Length | 0.245 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.417 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 56 AXIALLY THROUGH BODY FIRST END |
| End Nominal Diameter | 4.000 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.215 INCHES SECOND END IN |
| Counterbore Nominal Depth | 0.245 INCHES FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.215 INCHES SECOND END IN |
| Body Recess Nominal Depth | 0.185 INCHES FIRST END IN |
| Face Nominal Width | 0.550 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 717612271-009 PRIMARY | Lockheed Martin Corporation (USA) |
NSN 3020-01-280-5004 is a Gear,spur, manufactured by Lockheed Martin Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-280-5004 has 1 manufacturer part number on file: 717612271-009 (Lockheed Martin Corporation).
Key specifications for 717612271-009: Bore Nominal Diameter: 3.350 INCHES BOTH ENDS IN; Teeth Quantity: 210; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 4.000 INCHES SECOND END IN. 28 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 3020-01-280-5004 has DEMIL Code Q. 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.