The Piston,actuator, cataloged under National Stock Number 1660-01-202-3897, 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 Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 3 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 | 1660-01-202-3897 |
| Primary Part Number | 727522-5 |
| Item Name | Piston,actuator |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| FSC Application Data | VALVE,PRESSURE REGULATOR |
| General Characteristics Item Description | STEEL COMP 631;1.384 IN. DIA.;2.086 IN. MIN. TO 2.100 IN. MAX. H;0.038 IN. MIN. TO 0.500 IN. MAX. METAL THICKNESS;CENTERHOLE MEASURES 0.654 IN. MIN. TO 0.661 IN. MAX. DIA. IN |
| Functional Description | USED ON VALVE,PRESSURE REGULATOR P/N 784637-1 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 727522-5 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 1660-01-202-3897 is a Piston,actuator, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-202-3897 has 1 manufacturer part number on file: 727522-5 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 727522-5: FSC Application Data: VALVE,PRESSURE REGULATOR; General Characteristics Item Description: STEEL COMP 631;1.384 IN. DIA.;2.086 IN. MIN. TO 2.100 IN. MAX. H;0.038 IN. MIN. TO 0.500 IN. MAX. METAL THICKNESS;CENTERHOLE MEASURES 0.654 IN. MIN. TO 0.661 IN. MAX. DIA. IN; Functional Description: USED ON VALVE,PRESSURE REGULATOR P/N 784637-1; End Item Identification: B52 G/H ACFT. 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 1660-01-202-3897 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.