The Gear,spur, cataloged under National Stock Number 3020-00-473-5078, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-473-5078 |
| Primary Part Number | H3-25 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Teeth Quantity | 25 |
| Attachment Method | CLAMP |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 0.422 INCHES IN |
| Clamping Surface Nominal Length | 0.250 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Tooth Form | STANDARD |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Bore Nominal Diameter | 0.187 INCHES BOTH ENDS IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 OVERALL |
| Hub Nominal Diameter | 0.250 INCHES FIRST END IN |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.281 INCHES FIRST END IN |
| Backlash Designation | GRADE C |
| Material Document and Classification | MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Face Nominal Width | 0.125 INCHES IN |
| Hardness Rating | 75.0 ROCKWELL B MINIMUM AND 83.0 ROCKWELL B MAXIMUM OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Body Style | PLAIN, SOLID |
| Pitch Diameter | 0.3906 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| H3-25 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| 10236525-2 | Us Army Aviation and Missile Command (USA) |
| P22-25 | Designatronics Incorporated Div Sterling Instruments Div (USA) |
NSN 3020-00-473-5078 is a Gear,spur, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-473-5078 has 3 cross-referenced part numbers: H3-25 (Roller Bearing Co of America, Inc Div Pic Design), 10236525-2 (Us Army Aviation and Missile Command), P22-25 (Designatronics Incorporated Div Sterling Instruments Div).
There are 5 known substitutes for 3020-00-473-5078: 6150-00-008-4904, 2530-00-496-2996, 5342-01-010-4485 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for H3-25: Teeth Quantity: 25; Attachment Method: CLAMP; Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 0.422 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.