The Retainer Assembly,valve, cataloged under National Stock Number 1660-01-048-1778, 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 Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-048-1778 |
| Primary Part Number | 2722116 |
| Item Name | Retainer Assembly,valve |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| General Characteristics Item Description | 0.440 IN. MAX DIA APPROX,0.281 IN. H,1 HOLE 0.156 IN. DIA THRU,0.4375-20 UNF-2B THREAD,1 RETAINER P/N 2722116-1 CRES 300 SERIES QQ-S-763,PASSIVATE ES-F59-2,1 PELLET P/N 2722116-2 PER MIL-F-18240 CONFIGURATION A IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2722116 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 2722116 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 2722116 | 5/9 Secondary reference U.S. Government activity |
NSN 1660-01-048-1778 is a Retainer Assembly,valve, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-048-1778 has 1 manufacturer part number on file: 2722116 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 2722116: General Characteristics Item Description: 0.440 IN. MAX DIA APPROX,0.281 IN. H,1 HOLE 0.156 IN. DIA THRU,0.4375-20 UNF-2B THREAD,1 RETAINER P/N 2722116-1 CRES 300 SERIES QQ-S-763,PASSIVATE ES-F59-2,1 PELLET P/N 2722116-2 PER MIL-F-18240 CONFIGURATION A IN; End Item Identification: ACFT F5F U/O P/N 2760003-102. 1 specification is 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.
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.