The Gear,internal, cataloged under National Stock Number 3020-01-008-3047, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-008-3047 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 120 |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.3575 INCHES IN |
| Flange Nominal Diameter | 12.375 INCHES IN |
| Mounting Hole Type and Quantity | 48 THREADED AXIALLY THROUGH FLANGE |
| Teeth Type | SPUR |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | FLANGED RING |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 10.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Nominal Thread Size | 0.1640 INCHES AXIALLY THROUGH FLANGE IN |
| Nominal Outside Diameter | 10.4370 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Bolt Hole Circle Nominal Diameter | 10.938 INCHES AXIALLY THROUGH FLANGE IN |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH FLANGE |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 1.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D51-8854 | 3/9 Design control — primary reference Illinois Tool Works Inc |
| D51-8854 | C/1 Advisory reference — outside the item-of-supply concept Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Itw Heartland |
| 990-0984-010 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 990-0984 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| SS8801 | 5/9 Secondary reference Smallwood and Son Machine Co |
NSN 3020-01-008-3047 is a Gear,internal, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-008-3047: Teeth Quantity: 120; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.3575 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.
NSN 3020-01-008-3047 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.