The Gear,helical, cataloged under National Stock Number 3020-00-203-1533, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Kleinschmidt Inc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-203-1533 |
| Primary Part Number | 55163 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Kleinschmidt Inc |
| Status | ACTIVE |
| Attachment Method | MOUNTING HOLE |
| Body Style | WEBBED, SOLID |
| Teeth Quantity | 24 |
| Face Nominal Width | 0.344 INCHES IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.219 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.063 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Teeth Type | SINGLE HELIX |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.0580 INCHES IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Recess Nominal Depth | 0.094 INCHES FIRST END IN |
| Helix Angle | 45.0000 DEGREES |
| Bore Nominal Diameter | 0.2500 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Tooth Direction | LEFT |
| Mounting Hole Type and Quantity | 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END |
| Material | STEEL COMP 4150 OVERALL |
| Pitch Diameter | 1.0000 INCHES NOMINAL IN |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-203-1533 is a Gear,helical, manufactured by Kleinschmidt Inc, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-203-1533 has 2 cross-referenced part numbers: 55163 (Kleinschmidt Inc), SMB187072 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).
There are 2 known substitutes for 3020-00-203-1533: 5940-00-578-9169, 5330-01-442-1266. Verify interchangeability with system specifications before substitution.
Key specifications for 55163: Attachment Method: MOUNTING HOLE; Body Style: WEBBED, SOLID; Teeth Quantity: 24; Face Nominal Width: 0.344 INCHES IN. 23 total characteristics are documented in the Federal Logistics Information System.