The Gear,helical, cataloged under National Stock Number 3020-00-557-7547, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 22 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-557-7547 |
| Primary Part Number | 5577547 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Nominal Overall Length | 3.500 INCHES IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Material | STEEL COMP 4815 OVERALL |
| Pitch Diameter | 4.5349 INCHES NOMINAL IN |
| Material Document and Classification | ED STD 66,AISI/SAE 4815 FED STD 5TH MATERIAL RESPONSE OVERALL |
| Tooth Form | STANDARD |
| Bore Nominal Diameter | 3.126 INCHES BOTH ENDS IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.532 INCHES FIRST END IN |
| Hub Nominal Diameter | 4.125 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.783 INCHES IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Face Nominal Width | 2.750 INCHES IN |
| Teeth Quantity | 26 |
| Helix Angle | 17.1461 DEGREES |
| Tooth Direction | LEFT |
| Teeth Type | SINGLE HELIX |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | PROTRUDING HUBS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.218 INCHES SECOND END IN |
| Hub Nominal Diameter | 4.125 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Body Style | PLAIN, SOLID |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-557-7547 is a Gear,helical, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-557-7547 has 2 cross-referenced part numbers: 89-5-5 (Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products), 5577547 (U S Army Tank Automotive Command Amsta-Im-Mm).
There are 7 known substitutes for 3020-00-557-7547: 5905-00-116-8562, 5330-00-118-6563, 1660-00-325-1513 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 5577547: Nominal Overall Length: 3.500 INCHES IN; Hub Style Designator: PLAIN BOTH ENDS; Material: STEEL COMP 4815 OVERALL; Pitch Diameter: 4.5349 INCHES NOMINAL IN. 22 total characteristics are documented in the Federal Logistics Information System.