The Brake,caliper Disc,, cataloged under National Stock Number 4920-01-571-8300, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Brake,caliper Disc, |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (CAGE 74QK6) |
| Parameter | Value |
|---|---|
| NSN | 4920-01-571-8300 |
| Primary Part Number | 433-693 |
| Item Name | Brake,caliper Disc, |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 433-693 PRIMARY | Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering (USA) |
| Reference | Meaning |
|---|---|
| 03-515-018 W/ (1) 32-230-070 | 5/2 Secondary reference U.S. Government activity |
| 433-693 | 3/9 Design control — primary reference Risk Industries Llc Dba Pines Technology Div Headquarters |
NSN 4920-01-571-8300 is a Brake,caliper Disc,, manufactured by Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-571-8300 has 1 manufacturer part number on file: 433-693 (Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4920-01-571-8300 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.