The Disk,valve, cataloged under National Stock Number 1660-01-122-7963, 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 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-122-7963 |
| Primary Part Number | 3168400-2 |
| Item Name | Disk,valve |
| 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 |
| Outside Diameter | 2.696 INCHES MINIMUM AND 2.700 INCHES MAXIMUM IN |
| Style Designator | BUTTERFLY |
| Material Document and Classification | QQ-A-250/4, T3 FED SPEC SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Bolt Circle Diameter | 1.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3168400-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
NSN 1660-01-122-7963 is a Disk,valve, 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 1660-01-122-7963 has 1 manufacturer part number on file: 3168400-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3168400-2: Outside Diameter: 2.696 INCHES MINIMUM AND 2.700 INCHES MAXIMUM IN; Style Designator: BUTTERFLY; Material Document and Classification: QQ-A-250/4, T3 FED SPEC SINGLE MATERIAL RESPONSE; Material Thickness: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN. 6 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 1660-01-122-7963 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.