The Computer,air Data, cataloged under National Stock Number 6610-01-372-8170, is classified within Federal Supply Class 6610 (Flight Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6610-01-372-8170 |
| Item Name | Computer,air Data |
| FSC / FSG | 6610 / 66 — Flight Instruments |
| Status | ACTIVE |
| Phase | SINGLE |
| Frequency in Hertz | 400.0 |
| Intelligence Input Method | AIR OR ELECTRICAL |
| Relationship to Similar Equipment | DIFFERENCES FROM CPU-136/A: A; OUTPUTS NOT USED IN CPU-136/A HAVE BEEN DELETED. ONE TEST CONNECTOR HAS BEEN DELETED. MEMORY AND HARDWARE GROWTH ARE INCREASED. B; NEW DATA WORD IS TRANSMITTED ON THE MUX BUS FOR AIRCRAFT MAINTENANCE FAULT CODE REPORTING/FAULT ISOLATION ENHANCEMENTS. C; RELIABILITY HAS BEEN INCREASED. D; AIR DATA COMPUTER WILL BE MAINTAINED AT 2 LEVELS IN LIEU OF 3. E; NEW AIR DATA COMPUTER CAN BE SUBSTITUTED FOR CPU-136/A BUT NOT VICE VERSA. THIS IS REQUIRED TO PREVENT DEMODIFICATION OF UPDATED AIRCRAFT THAT WILL NOT HAVE I-LEVEL AIR DATA SUPPORT REQUIRED FOR CPU-136/A. |
| Alternating Current Voltage Rating in Volts | 115.0 |
| Unpackaged Unit Length | 12.560 INCHES NOMINAL IN |
| Power Source | EXTERNAL |
| Unpackaged Unit Width | 6.200 INCHES NOMINAL IN |
| Unpackaged Unit Height | 6.940 INCHES NOMINAL IN |
| Input Intelligence Type | AIR DENSITY AND AIR PRESSURE AND ALTITUDE, GENERAL DATA AND AIR TEMPERATURE AND PRESSURE ALTITUDE AND ANGLE OF ATTACK AND SPEED AND TRUE AIR SPEED AND TRUE ANGLE OF ATTACK |
| Mounting Type | RACK |
| Type/model Designation | CPU-187/A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CPU-187/A | 5/1 Secondary reference U.S. Government activity |
| 8518930-901 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| 8518930-901 | 3/2 Design control — primary reference U.S. Government activity |
| 6610PL0736243 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 6610-01-372-8170 is a Computer,air Data, classified under FSC 6610, Flight Instruments. Status: active.
Key specifications for 6610-01-372-8170: Phase: SINGLE; Frequency in Hertz: 400.0; Intelligence Input Method: AIR OR ELECTRICAL; Relationship to Similar Equipment: DIFFERENCES FROM CPU-136/A: A; OUTPUTS NOT USED IN CPU-136/A HAVE BEEN DELETED. ONE TEST CONNECTOR HAS BEEN DELETED. MEMORY AND HARDWARE GROWTH ARE INCREASED. B; NEW DATA WORD IS TRANSMITTED ON THE MUX BUS FOR AIRCRAFT MAINTENANCE FAULT CODE REPORTING/FAULT ISOLATION ENHANCEMENTS. C; RELIABILITY HAS BEEN INCREASED. D; AIR DATA COMPUTER WILL BE MAINTAINED AT 2 LEVELS IN LIEU OF 3. E; NEW AIR DATA COMPUTER CAN BE SUBSTITUTED FOR CPU-136/A BUT NOT VICE VERSA. THIS IS REQUIRED TO PREVENT DEMODIFICATION OF UPDATED AIRCRAFT THAT WILL NOT HAVE I-LEVEL AIR DATA SUPPORT REQUIRED FOR CPU-136/A.. 12 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 6610-01-372-8170 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.