The Bellows,pressure, cataloged under National Stock Number 1660-01-063-9988, 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 Schneider Electric Systems Usa Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-063-9988 |
| Primary Part Number | 22657R |
| Item Name | Bellows,pressure |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Schneider Electric Systems Usa Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3166634-1 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 22657R PRIMARY | Schneider Electric Systems Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 3166634-1 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-063-9988 is a Bellows,pressure, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-063-9988 has 2 manufacturer part numbers on file: 3166634-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 22657R (Schneider Electric Systems Usa Inc).
Key specifications for 22657R: Special Features: BELLOWS AND ROD CRES; CASE BRASS 1.300 IN. MAX LG; 1.251 IN. NOMINAL DIA IN; End Item Identification: F-16 ACFT,SENSOR,TEMP CONTROLLER/ACFT A/C AND HEATING SYSTEM. 0 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 1660-01-063-9988 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.