The Bellows,pressure, cataloged under National Stock Number 1660-01-162-6574, 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 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-162-6574 |
| Item Name | Bellows,pressure |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Outside Diameter | 3.920 INCHES NOMINAL IN |
| Operating Pressure | 23.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Specific Use | OAS/CMI |
| Material | STEEL COMP 304L OR STEEL COMP 316L OR STEEL COMP 347 OR STEEL COMP 321 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2146-10497-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-162-6574 is a Bellows,pressure, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-162-6574: Outside Diameter: 3.920 INCHES NOMINAL IN; Operating Pressure: 23.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Specific Use: OAS/CMI; Special Features: NESTED HT 0.290 IN. MINIMUM;STROKE 0.450 IN;VOLUMETRIC COMP 2.100 CUBIC IN. MINIMUM;PASSIVATE PER QQ-P-35 IN. 4 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 1660-01-162-6574 has DEMIL Code Q. 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.