The Gear,antibacklash,spur, cataloged under National Stock Number 3020-01-348-1588, 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 27 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-348-1588 |
| Primary Part Number | Z3H090X-P1 |
| 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 FIRST END IN |
| Teeth Quantity | 90 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE HUB |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FIRST GEAR |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SECOND GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.221 INCHES FIRST END IN |
| First Step Nominal Length | 0.041 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE HUB |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR |
| Pitch Diameter | 0.9375 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.495 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.180 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.958 INCHES IN |
| Surface Treatment | PASSIVATE SECOND GEAR |
| Surface Treatment | PASSIVATE HUB |
| Surface Treatment | PASSIVATE FIRST GEAR |
| End Nominal Diameter | 0.187 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 FIRST GEAR |
| Material | STEEL COMP 303 SECOND GEAR |
| Material | STEEL COMP 303 HUB |
| Face Nominal Width | 0.104 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 |
| Part Number | Manufacturer |
|---|---|
| Z3H090X-P1 PRIMARY | Designatronics Incorporated Div Sterling Instruments Div (USA) |
| S9712A-Z3H090X-P PRIMARY | Designatronics Incorporated Div Sterling Instruments Div (USA) |
NSN 3020-01-348-1588 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 3020-01-348-1588 has 2 manufacturer part numbers on file: Z3H090X-P1 (Designatronics Incorporated Div Sterling Instruments Div), S9712A-Z3H090X-P (Designatronics Incorporated Div Sterling Instruments Div).
Key specifications for Z3H090X-P1: Bore Nominal Diameter: 0.120 INCHES FIRST END IN; Teeth Quantity: 90; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE HUB; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FIRST GEAR. 27 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 3020-01-348-1588 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.