The Gear,internal, cataloged under National Stock Number 3020-01-359-5352, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-359-5352 |
| Primary Part Number | 174805 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Teeth Quantity | 110 |
| Surface Treatment Document and Classification | QQ-P-416C TYPE II CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.200 INCHES IN |
| Flange Nominal Diameter | 6.250 INCHES IN |
| Mounting Hole Type and Quantity | 8 PLAIN AXIALLY THROUGH FLANGE |
| Mounting Hole Nominal Diameter | 0.290 INCHES AXIALLY THROUGH FLANGE IN |
| Teeth Type | SPUR |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 2.601 INCHES IN |
| Style Designator | RECESSED RING FLANGE TYPE HUG |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.5833 INCHES NOMINAL IN |
| Nominal Outside Diameter | 5.000 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Bolt Hole Circle Nominal Diameter | 5.700 INCHES AXIALLY THROUGH FLANGE IN |
| Body Recess Nominal Diameter | 4.700 INCHES BOTH ENDS IN |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.351 INCHES BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 174805 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 3020-01-359-5352 is a Gear,internal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-359-5352 has 1 manufacturer part number on file: 174805 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-503-0939. Verify interchangeability with system specifications before substitution.
Key specifications for 174805: Teeth Quantity: 110; Surface Treatment Document and Classification: QQ-P-416C TYPE II CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.200 INCHES IN. 21 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.