The Calibration Cell, cataloged under National Stock Number 4920-01-674-4884, 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 Group Four Transducers Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Calibration Cell |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | Group Four Transducers Inc (CAGE 7FV33) |
| Parameter | Value |
|---|---|
| NSN | 4920-01-674-4884 |
| Primary Part Number | 428840-1 |
| Item Name | Calibration Cell |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Group Four Transducers Inc |
| Status | ACTIVE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 428840-1 PRIMARY | Group Four Transducers Inc (USA) |
| LRCN710-LC1112 10K PRIMARY | Group Four Transducers Inc (USA) |
| Reference | Meaning |
|---|---|
| LRCN710-LC1112 10K | 3/9 Design control — primary reference Test Dynamics Inc Dba Cooper Instruments and Systems |
| 428840-1 | 1/2 Source control — Government-approved source U.S. Government activity |
| 428840 | D/9 Drawing number reference only U.S. Government activity |
NSN 4920-01-674-4884 is a Calibration Cell, manufactured by Group Four Transducers Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-674-4884 has 2 manufacturer part numbers on file: 428840-1 (Group Four Transducers Inc), LRCN710-LC1112 10K (Group Four Transducers Inc).
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 4920-01-674-4884 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.