The Cap,accumulator, cataloged under National Stock Number 1650-01-347-4471, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Tactair Fluid Controls Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-01-347-4471 |
| Primary Part Number | 28 40040-7 |
| Item Name | Cap,accumulator |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| General Characteristics Item Description | TITANIUM TYPE 6AL-4V IAW AMS 4965 OR AMS 4967,FITTING; CRES TYPE A-286 IAW AMS 5731 OR AMS 5734,RC 34-40; 1.170 IN. O.D. V |
| 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 |
|---|---|
| 28 40040-7 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 9912-13 | 5/9 Secondary reference U.S. Government activity |
| 28 40040-7 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-01-347-4471 is a Cap,accumulator, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-347-4471 has 1 manufacturer part number on file: 28 40040-7 (Tactair Fluid Controls Inc).
Key specifications for 28 40040-7: General Characteristics Item Description: TITANIUM TYPE 6AL-4V IAW AMS 4965 OR AMS 4967,FITTING; CRES TYPE A-286 IAW AMS 5731 OR AMS 5734,RC 34-40; 1.170 IN. O.D. V; End Item Identification: ACFT MODEL CH53E. 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.
NSN 1650-01-347-4471 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.