The Gear Rack, cataloged under National Stock Number 3020-01-478-3953, 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 Moog Inc. Dba Ampac-Isp Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-478-3953 |
| Primary Part Number | 36924 |
| Item Name | Gear Rack |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Moog Inc. Dba Ampac-Isp Corp |
| Status | ACTIVE |
| Teeth Quantity | 10 |
| Pitch Height | 0.8710 INCHES NOMINAL IN |
| Mounting Hole Type and Quantity | 1 THREADED AXIALLY THROUGH BODY FIRST END |
| Teeth Type | SPUR |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 5.2300 INCHES IN |
| Style Designator | ROUND |
| Material Document and Classification | AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Nominal Thread Size | 0.375 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Distance From Mounting Hole Center to Bottom | 0.625 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 1.2490 INCHES IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH BODY FIRST END |
| Nominal Thickness | 0.9950 INCHES IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 36924 | Moog Inc. Dba Ampac-Isp Corp (USA) |
| 3792-36920 ITEM 3 | Moog Inc. Dba Ampac-Isp Corp (USA) |
| Reference | Meaning |
|---|---|
| 3792-36920 | D/9 Drawing number reference only U.S. Government activity |
| 3792-36920 | D/9 Drawing number reference only Moog Inc. Dba Ampac-Isp Corp |
| 3792-36920 ITEM 3 | 5/2 Secondary reference U.S. Government activity |
| 36924 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-478-3953 is a Gear Rack, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-478-3953 has 2 manufacturer part numbers on file: 36924 (Moog Inc. Dba Ampac-Isp Corp), 3792-36920 ITEM 3 (Moog Inc. Dba Ampac-Isp Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4810-01-545-4200, 4730-01-694-5081. Verify interchangeability with system specifications before substitution.
Key specifications for 36924: Teeth Quantity: 10; Pitch Height: 0.8710 INCHES NOMINAL IN; Mounting Hole Type and Quantity: 1 THREADED AXIALLY THROUGH BODY FIRST END; Teeth Type: SPUR. 16 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.