The Gear Cluster, cataloged under National Stock Number 3020-00-072-5580, 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 Cef Industries, Llc Dba Cef Industries Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-072-5580 |
| Primary Part Number | 7088-23 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cef Industries, Llc Dba Cef Industries Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.727 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.9370 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Backlash Designation | GRADE B FIRST GEAR |
| Design Type | SPUR SECOND GEAR |
| Design Type | WORM WHEEL FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 8 SECOND GEAR |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.250 INCHES IN |
| Material Document and Classification | AMS6274 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.157 INCHES FIRST END IN |
| Hub Nominal Length | 0.156 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.2500 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.1410 INCHES FIRST GEAR IN |
| Material | STEEL OVERALL |
| Construction | WELDED |
| 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 |
|---|---|
| 7088-23 PRIMARY | Cef Industries, Llc Dba Cef Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 3020PL1818518 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C7088-23 | 5/9 Secondary reference Cef Industries, Llc Dba Cef Industries Inc |
NSN 3020-00-072-5580 is a Gear Cluster, manufactured by Cef Industries, Llc Dba Cef Industries Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-072-5580 has 1 manufacturer part number on file: 7088-23 (Cef Industries, Llc Dba Cef Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 1270-00-322-3700. Verify interchangeability with system specifications before substitution.
Key specifications for 7088-23: Bore Nominal Diameter: 0.727 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.9370 INCHES BETWEEN FIRST AND SECOND GEAR IN; Backlash Designation: GRADE B FIRST GEAR; Design Type: SPUR SECOND GEAR. 17 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.