The Gear,helical, cataloged under National Stock Number 3020-00-448-3473, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3020-00-448-3473 |
| Primary Part Number | 26-309 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | CANCELLED |
| Style Designator | HUBLESS |
| Nominal Distance From Bore Center to Keyway Bottom | 0.832 INCHES BOTH ENDS IN |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Nominal Outside Diameter | 3.720 INCHES IN |
| Helix Angle | 31.0000 DEGREES |
| Material | STEEL COMP 1040 OVERALL |
| Keyway Nominal Width | 0.157 INCHES BOTH ENDS IN |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1040 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Bore Nominal Diameter | 1.500 INCHES BOTH ENDS IN |
| Hardness Rating | 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM OVERALL |
| Teeth Quantity | 27 |
| Face Nominal Width | 0.875 INCHES IN |
| Tooth Form | STANDARD |
| Pitch Diameter | 3.4999 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 26-309 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
NSN 3020-00-448-3473 is a Gear,helical, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3020 (No Item Name Available). Status: cancelled.
NSN 3020-00-448-3473 has 1 cross-referenced part number: 26-309 (Dresser Industries Inc Leroi Div).
There are 7 known substitutes for 3020-00-448-3473: 5977-00-178-8176, 5120-00-203-5107, 2520-00-735-0172 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 26-309: Style Designator: HUBLESS; Nominal Distance From Bore Center to Keyway Bottom: 0.832 INCHES BOTH ENDS IN; Body Style: PLAIN, SOLID; Tooth Direction: LEFT. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 3020-00-448-3473 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.