The Gear,internal, cataloged under National Stock Number 3020-01-414-7959, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-414-7959 |
| Primary Part Number | 835-6556499 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Face Nominal Width | 1.630 INCHES IN |
| Body Style | WEBBED, OFFSET, SOLID |
| Second Groove Nominal Width | 0.220 INCHES SECOND END IN |
| Tooth Form | STUB |
| Nominal Distance From End to Second Groove | 2.122 INCHES SECOND END IN |
| Hub Nominal Diameter | 5.750 INCHES SECOND END IN |
| Nominal Outside Diameter | 10.630 INCHES IN |
| Bore Style | W/COUNTERBORE SECOND END |
| Teeth Type | SPUR |
| Nominal Distance From End to First Groove | 0.390 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 2.894 INCHES SECOND END IN |
| First Groove Nominal Diameter | 5.720 INCHES SECOND END IN |
| Material Document and Classification | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second Groove Nominal Diameter | 5.720 INCHES SECOND END IN |
| Bore Nominal Diameter | 4.500 INCHES SECOND END IN |
| Teeth Quantity | 74 |
| Nominal Overall Length | 5.336 INCHES IN |
| Material | STEEL COMP 4140 AND STEEL COMP 4142 OVERALL |
| Counterbore Nominal Diameter | 4.801 INCHES COUNTER BORE SECOND END IN |
| Hub Style Designator | 2 GROOVES SECOND END |
| Counterbore Nominal Depth | 0.943 INCHES COUNTER BORE SECOND END IN |
| Style Designator | SOLID BACK RING, PROTRUDING HUB |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM BODY |
| First Groove Nominal Width | 0.120 INCHES SECOND END IN |
| Pitch Diameter | 9.2500 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Precision Classification | ACCURACY GRADE 10 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 835-6556499 PRIMARY | Naval Sea Systems Command (USA) |
| 6603141 | Naval Sea Systems Command (USA) |
| 845-6603141-50 | Naval Sea Systems Command (USA) |
| 845-6556499 | Naval Sea Systems Command (USA) |
| 6556499 | Naval Sea Systems Command (USA) |
NSN 3020-01-414-7959 is a Gear,internal, manufactured by Naval Sea Systems Command, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-01-414-7959 has 5 cross-referenced part numbers: 835-6556499 (Naval Sea Systems Command), 6603141 (Naval Sea Systems Command), 845-6603141-50 (Naval Sea Systems Command), 845-6556499 (Naval Sea Systems Command), 6556499 (Naval Sea Systems Command).
There are 3 known substitutes for 3020-01-414-7959: 3020-01-382-3563, 4730-01-413-8271, 4820-01-415-4349. Verify interchangeability with system specifications before substitution.
Key specifications for 835-6556499: Face Nominal Width: 1.630 INCHES IN; Body Style: WEBBED, OFFSET, SOLID; Second Groove Nominal Width: 0.220 INCHES SECOND END IN; Tooth Form: STUB. 29 total characteristics are documented in the Federal Logistics Information System.