The Recorder Set,sound, cataloged under National Stock Number 7450-01-028-8391, is classified within Federal Supply Class 7450 (Office Type Sound Recording and Reproducing Machines) of the Office Machines and Visible Record Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 7450-01-028-8391 |
| Primary Part Number | 2770A |
| Item Name | Recorder Set,sound |
| FSC / FSG | 7450 / 74 — Office Type Sound Recording and Reproducing Machines |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| AC Voltage Rating | 115.0 VOLTS MINIMUM AND 120.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Recording Medium for Which Designed | TAPE |
| Electrical Power Source Relationship | OPERATING |
| 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 |
|---|---|
| 2770A PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 2770A | 5/9 Secondary reference U.S. Government activity |
| 2770A | 5/9 Secondary reference Minnesota Mining and Mfg Co Broadcasting and Related Products Div |
NSN 7450-01-028-8391 is a Recorder Set,sound, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 7450, Office Type Sound Recording and Reproducing Machines. Status: active.
NSN 7450-01-028-8391 has 1 manufacturer part number on file: 2770A (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2770A: AC Voltage Rating: 115.0 VOLTS MINIMUM AND 120.0 VOLTS MAXIMUM LOCATION NOT OTHERWISE SPECIFIED; Recording Medium for Which Designed: TAPE; Electrical Power Source Relationship: OPERATING; Special Features: COMPACT, HIGH SPEED CASSETTE TO CASSETTE DUPLICATOR WITH MASTER AND 2 COPIER POSITIONS; CAPABLE OF RECORDING 30 CASSETTE TAPES AT ONE RECORDING SESSION. 3 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.