The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-01-052-5356, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-052-5356 |
| Primary Part Number | 979198-1-1 |
| Item Name | Valve Assembly,environmental Con |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| General Characteristics Item Description | 7.170 IN. LG,6.860 IN. W,5.800 IN. H,INLET TEMP RANGE M55.0 DEG F TO 475.0 DEG F,INLET PRESSURE RANGE 10.0 PSIG TO 90.0 PSIG,PROOF PRESSURE 135.0 PSIG AT 475.0 DEG F,BURST PRESSURE 225.0 PSIG AT 475.0 DEG F,AMBIENT TEMPERATURE M65.0 DEG F TO 160.0 DEG F,SPRING LOADED NORMALLY CLOSED,VALVE BEGINS TO OPEN BETWEEN 20 TO 45 MAMPS,FULLY OPEN BETWEEN 80 TO 100 MAMPS IN |
| 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 |
|---|---|
| 979198-1-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 1660PL0662043 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 979198-1-1 | 5/9 Secondary reference U.S. Government activity |
| 16VY103001-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 1660-01-052-5356 is a Valve Assembly,environmental Con, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-052-5356 has 1 manufacturer part number on file: 979198-1-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 979198-1-1: General Characteristics Item Description: 7.170 IN. LG,6.860 IN. W,5.800 IN. H,INLET TEMP RANGE M55.0 DEG F TO 475.0 DEG F,INLET PRESSURE RANGE 10.0 PSIG TO 90.0 PSIG,PROOF PRESSURE 135.0 PSIG AT 475.0 DEG F,BURST PRESSURE 225.0 PSIG AT 475.0 DEG F,AMBIENT TEMPERATURE M65.0 DEG F TO 160.0 DEG F,SPRING LOADED NORMALLY CLOSED,VALVE BEGINS TO OPEN BETWEEN 20 TO 45 MAMPS,FULLY OPEN BETWEEN 80 TO 100 MAMPS IN; End Item Identification: ACFT F16A/B. 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.
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.