The Valve,anti Icing, cataloged under National Stock Number 1660-01-238-1937, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-238-1937 |
| Item Name | Valve,anti Icing |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT ANTI-ICING SYSTEM |
| General Characteristics Item Description | NORMALLY CLOSED POSITION; OPERATION PRESSURE RANGE OF 2.4 TO 14.7 PSIA |
| Functional Description | USED IN NOSE COWL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 979598-1 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 979598-1-1 | 3/2 Design control — primary reference U.S. Government activity |
| 979598-1 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-238-1937 is a Valve,anti Icing, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-238-1937: FSC Application Data: AIRCRAFT ANTI-ICING SYSTEM; General Characteristics Item Description: NORMALLY CLOSED POSITION; OPERATION PRESSURE RANGE OF 2.4 TO 14.7 PSIA; Functional Description: USED IN NOSE COWL. 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.
NSN 1660-01-238-1937 has DEMIL Code B. 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.