The Gear,spur, cataloged under National Stock Number 3020-01-016-9958, 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 Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc. Government technical data includes 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-016-9958 |
| Primary Part Number | G344173 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.437 INCHES FIRST END IN |
| Teeth Quantity | 42 |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.210 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Nominal Overall Length | 0.335 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.8750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PINNED FIRST END |
| Mounting Hole Nominal Thread Size | 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Nominal Outside Diameter | 0.914 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 40 TRANSVERSELY THROUGH HUB FIRST END |
| Surface Treatment | ANODIZE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.125 INCHES 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 |
|---|---|
| G344173 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| G354173 | 5/9 Secondary reference American Telephone and Telegraph Co |
| G354173 | 5/9 Secondary reference Lucent Technologies Inc Advanced Technology Systems |
| G354173 | 3/9 Design control — primary reference Zagora Gear Products Inc |
NSN 3020-01-016-9958 is a Gear,spur, manufactured by Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-016-9958 has 1 manufacturer part number on file: G344173 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc).
Key specifications for G344173: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.437 INCHES FIRST END IN; Teeth Quantity: 42; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.