The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-052-2846, 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 Secs Inc. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-052-2846 |
| Primary Part Number | ABC49-120 0.090 BORE |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Secs Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.090 INCHES BOTH ENDS IN |
| Teeth Quantity | 120 |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE HUB |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.221 INCHES FIRST END IN |
| First Step Nominal Length | 0.190 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE HUB |
| Pitch Diameter | 1.4990 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.250 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.190 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.524 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| Surface Treatment | ANODIZE BODY |
| End Nominal Diameter | 0.188 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | STEEL COMP 303 HUB |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.104 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| Z3G-120X-AP1 0.0900 BORE | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| ABC49-120 0.090 BORE PRIMARY | Secs Inc (USA) |
| Reference | Meaning |
|---|---|
| 802785-2120 | 5/2 Secondary reference U.S. Government activity |
| MZ3G-120X-AQ10-.0900 | 5/9 Secondary reference Designatronics Incorporated Div Sterling Instruments Div |
| MZ3G-120X-AP1 0. | C/1 Advisory reference — outside the item-of-supply concept Designatronics Incorporated Div Sterling Instruments Div |
| MZ3G-120X-AP1 0.090 BORE | 5/9 Secondary reference Designatronics Incorporated Div Sterling Instruments Div |
| ABC49-120 0.090 | C/1 Advisory reference — outside the item-of-supply concept Secs Inc |
| 802785 | D/9 Drawing number reference only U.S. Government activity |
| MZ3G-120X-AQ10-. | C/1 Advisory reference — outside the item-of-supply concept Designatronics Incorporated Div Sterling Instruments Div |
NSN 3020-01-052-2846 is a Gear,antibacklash,spur, manufactured by Secs Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-052-2846 has 2 manufacturer part numbers on file: Z3G-120X-AP1 0.0900 BORE (Designatronics Incorporated Div Sterling Instruments Div), ABC49-120 0.090 BORE (Secs Inc).
Key specifications for ABC49-120 0.090 BORE: Bore Nominal Diameter: 0.090 INCHES BOTH ENDS IN; Teeth Quantity: 120; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Surface Treatment Document and Classification: QQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE HUB. 25 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 3020-01-052-2846 has DEMIL Code B. 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.