The Gear,spur, cataloged under National Stock Number 3020-00-480-5147, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-480-5147 |
| Primary Part Number | 481252-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 132 |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 4 PLAIN AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.161 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.4990 INCHES MINIMUM AND 5.5000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 5.580 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.250 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 481252-1 | Raytheon Company (USA) |
| 481252-1 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| 481252-1 | Bendon Gear and Machine, Inc (USA) |
| Reference | Meaning |
|---|---|
| 481252 | D/9 Drawing number reference only Raytheon Company Div Corp |
| 481252-1 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 3020-00-480-5147 is a Gear,spur, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-480-5147 has 3 manufacturer part numbers on file: 481252-1 (Raytheon Company), 481252-1 (Raytheon Company Dba Raytheon Co), 481252-1 (Bendon Gear and Machine, Inc).
Key specifications for 481252-1: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Teeth Quantity: 132; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, WITH LIGHTENING HOLES. 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.