The Gear Rack, cataloged under National Stock Number 3020-01-200-4366, 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 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-200-4366 |
| Primary Part Number | 3421C8 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| Status | ACTIVE |
| Teeth Quantity | 11 |
| Pitch Height | 0.6406 INCHES NOMINAL IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 7.656 INCHES IN |
| Style Designator | ROUND, BOSS MOUNTED |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.062 INCHES IN |
| Boss Nominal Length | 0.750 INCHES BOTH ENDS IN |
| Boss Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Nominal Thickness | 0.750 INCHES IN |
| Face Nominal Width | 0.938 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 |
|---|---|
| 3421C8 PRIMARY | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 3421RA PIECE 8 | 5/9 Secondary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| 3421RA | D/9 Drawing number reference only Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
NSN 3020-01-200-4366 is a Gear Rack, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-200-4366 has 1 manufacturer part number on file: 3421C8 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).
3 possible matches (shared part number, not a government interchangeability claim): 3020-01-200-8031, 3040-01-294-4422, 3040-01-294-7257. Verify interchangeability with system specifications before substitution.
Key specifications for 3421C8: Teeth Quantity: 11; Pitch Height: 0.6406 INCHES NOMINAL IN; Teeth Type: SPUR; Nominal Overall Length: 7.656 INCHES 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.