The Fitting Adapter Tee, cataloged under National Stock Number 1650-01-157-8683, 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 Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1650-01-157-8683 |
| Primary Part Number | A51H30592-11 |
| Item Name | Fitting Adapter Tee |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 4.705 IN. MIN,4.735 IN. MAX LG; 2.270 IN. DIA IN |
| 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 |
|---|---|
| A51H30592-11 | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| R44781T-252416 | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| AE16780-24 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| A51H30592-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H30592-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51H30592-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 1650-01-157-8683 is a Fitting Adapter Tee, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-157-8683 has 4 manufacturer part numbers on file: A51H30592-11 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), R44781T-252416 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division), AE16780-24 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), A51H30592-11 (Northrop Grumman Systems Corporation).
Key specifications for A51H30592-11: General Characteristics Item Description: 4.705 IN. MIN,4.735 IN. MAX LG; 2.270 IN. DIA IN; End Item Identification: AIRCRAFT MODEL F-14A A. 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 1650-01-157-8683 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.