The Gear,helical, cataloged under National Stock Number 3020-00-391-0927, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-391-0927 |
| Primary Part Number | 3300001 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Style Designator | PROTRUDING HUBS |
| First Step Nominal Length | 0.063 INCHES BOTH ENDS IN |
| Tooth Direction | LEFT |
| Pressure Angle | 20.0000 DEGREES |
| Helix Angle | 27.3217 DEGREES |
| Hub Style Designator | 1 STEP BOTH ENDS |
| End Nominal Diameter | 2.997 INCHES BOTH ENDS IN |
| First Step Nominal Diameter | 4.125 INCHES BOTH ENDS IN |
| Face Nominal Width | 2.000 INCHES IN |
| Material | STEEL OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.688 INCHES BOTH ENDS IN |
| Bore Style | PLAIN BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Pitch Diameter | 10.8000 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Teeth Quantity | 54 |
| Bore Nominal Diameter | 2.0000 INCHES BOTH ENDS IN |
| Tooth Form | STANDARD |
| Hardness Rating | 10.0 ROCKWELL C MINIMUM AND 20.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Outside Diameter | 11.084 INCHES IN |
| End Nominal Length | 1.375 INCHES BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| N29978PCA | Hatch & Kirk, Inc. (USA) |
| N29578PCA | Hatch & Kirk, Inc. (USA) |
| N29978PCA | General Motors Corp Electro-Motive Div (USA) |
| 3300001 PRIMARY | Hatch & Kirk, Inc. (USA) |
| N29578PCA | General Motors Corp Electro-Motive Div (USA) |
| 3300001 | General Motors Corp Electro-Motive Div (USA) |
NSN 3020-00-391-0927 is a Gear,helical, manufactured by Hatch & Kirk, Inc., classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-391-0927 has 6 cross-referenced part numbers: N29978PCA (Hatch & Kirk, Inc.), N29578PCA (Hatch & Kirk, Inc.), N29978PCA (General Motors Corp Electro-Motive Div), 3300001 (Hatch & Kirk, Inc.), N29578PCA (General Motors Corp Electro-Motive Div) and 1 more.
There is 1 known substitute for 3020-00-391-0927: 5945-00-954-2411. Verify interchangeability with system specifications before substitution.
Key specifications for 3300001: Body Style: WEBBED, WITH LIGHTENING HOLES; Style Designator: PROTRUDING HUBS; First Step Nominal Length: 0.063 INCHES BOTH ENDS IN; Special Features: TWO COUNTERWEIGHTS,BOLTS,NUTS,OIL HOLES IN HUB,FIG 1 STAMPED BETWEEN TEETH ON SIDE OF GEAR 170 DEG 57 MIN CCW FROM UPPER CENTER LINE,FIG 4 STAMPED BETWEEN TEETH ON SIDE @OF GEAR 73 DEG @20 MIN CCW FROM FIG 1. 23 total characteristics are documented in the Federal Logistics Information System.