The Gear,internal, cataloged under National Stock Number 3020-01-255-5584, 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 Cleveland Gear Company, Inc. Dba Cleveland Gear Co. Government technical data includes 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-255-5584 |
| Primary Part Number | T001413138 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
| Status | ACTIVE |
| Teeth Quantity | 66 |
| Body Style | SPOKED |
| Mounting Hole Type and Quantity | 12 PLAIN TRANSVERSELY THROUGH FACE |
| Mounting Hole Nominal Diameter | 0.406 INCHES TRANSVERSELY THROUGH FACE IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 1.469 INCHES IN |
| Style Designator | SOLID BACK RING, HUBLESS |
| Pitch Diameter | 10.5625 INCHES NOMINAL IN |
| Nominal Outside Diameter | 12.438 INCHES IN |
| Pressure Angle | 30.0000 DEGREES |
| Material | ALUMINUM OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.781 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 |
|---|---|
| T001413138 PRIMARY | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA) |
| Reference | Meaning |
|---|---|
| A31170016 ITEM 16 | 5/9 Secondary reference The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C |
| T001413138 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1-413138 | 3/9 Design control — primary reference U.S. Government activity |
| M37420002 | 5/9 Secondary reference U.S. Government activity |
| A31170006 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-255-5584 is a Gear,internal, manufactured by Cleveland Gear Company, Inc. Dba Cleveland Gear Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-255-5584 has 1 manufacturer part number on file: T001413138 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co).
2 possible matches (shared part number, not a government interchangeability claim): 4210-01-256-9152, 4210-01-503-9488. Verify interchangeability with system specifications before substitution.
Key specifications for T001413138: Teeth Quantity: 66; Body Style: SPOKED; Mounting Hole Type and Quantity: 12 PLAIN TRANSVERSELY THROUGH FACE; Mounting Hole Nominal Diameter: 0.406 INCHES TRANSVERSELY THROUGH FACE IN. 13 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.