The Test Set,aircraft Engine, cataloged under National Stock Number 4920-00-974-8221, 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 Rolls-Royce Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-974-8221 |
| Primary Part Number | 6799327 |
| Item Name | Test Set,aircraft Engine |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Supplementary Features | COMPANY ITEM NAME-THERMOCOUPLE RESISTANCE TESTER |
| Reference Data and Literature | TO 33D4-6-187-1 |
| Height | 12.000 INCHES NOMINAL IN |
| Depth | 12.000 INCHES NOMINAL IN |
| Functional Description | USED TO MEASURE THE RESISTANCE OF A THERMOCOUPLE |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 18.000 INCHES NOMINAL IN |
| Test Type for Which Designed | THERMOCOUPLE RESISTANCE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4920-00-974-8221 is a Test Set,aircraft Engine, manufactured by Rolls-Royce Corporation, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-974-8221 has 2 manufacturer part numbers on file: 6799327 (Rolls-Royce Corporation), 6799327 (General Motors Corp).
Key specifications for 6799327: Supplementary Features: COMPANY ITEM NAME-THERMOCOUPLE RESISTANCE TESTER; Reference Data and Literature: TO 33D4-6-187-1; Height: 12.000 INCHES NOMINAL IN; Depth: 12.000 INCHES NOMINAL IN. 8 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.
NSN 4920-00-974-8221 has DEMIL Code Q. 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.