The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-423-3948, 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 Designatronics Incorporated Div Sterling Instruments Div. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-423-3948 |
| Primary Part Number | Z3G-210-AQ10 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Designatronics Incorporated Div Sterling Instruments Div |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.120 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.188 INCHES FIRST END IN |
| Teeth Quantity | 210 |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.221 INCHES BETWEEN BODY AND FLANGE IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.6250 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 2.650 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 SECOND GEAR |
| Material | ALUMINUM ALLOY 2024 FIRST GEAR |
| Material | STEEL COMP 303 HUB |
| Face Nominal Width | 0.104 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| Z3G-210-AQ10 PRIMARY | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| P12-6-210.2148 | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| ABC49-210-Q10 | Secs Inc (USA) |
| Reference | Meaning |
|---|---|
| 803350-2210 | 7/2 Vendor item drawing reference U.S. Government activity |
| DP126T 126.1248 | 5/9 Secondary reference Allied Devices Corp Dba Absolute Precision Co |
NSN 3020-01-423-3948 is a Gear,antibacklash,spur, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-423-3948 has 3 manufacturer part numbers on file: Z3G-210-AQ10 (Designatronics Incorporated Div Sterling Instruments Div), P12-6-210.2148 (Roller Bearing Co of America, Inc Div Pic Design), ABC49-210-Q10 (Secs Inc).
Key specifications for Z3G-210-AQ10: Bore Nominal Diameter: 0.120 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.188 INCHES FIRST END IN; Teeth Quantity: 210; Bore Style: PLAIN BOTH ENDS. 14 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 3020-01-423-3948 has DEMIL Code D. 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.