The Audio Threshold Unit, cataloged under National Stock Number 5831-01-018-1245, is classified within Federal Supply Class 5831 (Intercommunication and Public Address Systems, Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Instrument Specialties Company, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5831-01-018-1245 |
| Primary Part Number | 3201-1002 |
| Item Name | Audio Threshold Unit |
| FSC / FSG | 5831 / 58 — Intercommunication and Public Address Systems, Airborne |
| Manufacturer | Instrument Specialties Company, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | COMPONENT QUANTITY,BOARD PRINTED CIRCUIT 1,SCREW MACHINE 4,WASHER LOCK NO 4 18,WASHER FLAT NO4 18,MODULE ASSY TERMINAL 5,INSULATOR CONNECTOR 1,RESISTOR 1,CAPACITOR 6,TRANSFORMER 6 SEMI-CONDUCTOR DEVICE JAN IN3595 6SEMI-CONDUCTOR DEVICE IN2071 18,RELAY 3,5.750 IN LG,3.250 IN W,1.375 IN H IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 3201-1002 | Instrument Specialties Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 206-075-597-1 | 5/2 Secondary reference U.S. Government activity |
| MD-1101/A | 5/2 Secondary reference U.S. Government activity |
| 102D001 | 5/9 Secondary reference Instrument Specialties Company, Inc. |
| A3002801 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5831-01-018-1245 is a Audio Threshold Unit, manufactured by Instrument Specialties Company, Inc., classified under FSC 5831, Intercommunication and Public Address Systems, Airborne. Status: active.
NSN 5831-01-018-1245 has 1 manufacturer part number on file: 3201-1002 (Instrument Specialties Company, Inc.).
Key specifications for 3201-1002: General Characteristics Item Description: COMPONENT QUANTITY,BOARD PRINTED CIRCUIT 1,SCREW MACHINE 4,WASHER LOCK NO 4 18,WASHER FLAT NO4 18,MODULE ASSY TERMINAL 5,INSULATOR CONNECTOR 1,RESISTOR 1,CAPACITOR 6,TRANSFORMER 6 SEMI-CONDUCTOR DEVICE JAN IN3595 6SEMI-CONDUCTOR DEVICE IN2071 18,RELAY 3,5.750 IN LG,3.250 IN W,1.375 IN H IN. 1 specification is 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 5831-01-018-1245 has DEMIL Code D. 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.