The Retainer,seal Hydraulic, cataloged under National Stock Number 1650-00-345-7253, 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 Triangle Mfg and Pump Co. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Retainer,seal Hydraulic |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Triangle Mfg and Pump Co (CAGE 0EDU7); Kitco Llc (CAGE 34087); Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (CAGE 8X044) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-345-7253 |
| Primary Part Number | 4437247 |
| Item Name | Retainer,seal Hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Triangle Mfg and Pump Co |
| Status | ACTIVE |
| 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 |
|---|---|
| 4437247 | Triangle Mfg and Pump Co (USA) |
| 4437247 | Kitco Llc (USA) |
| 4437247 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| Reference | Meaning |
|---|---|
| 4437247 | 3/2 Design control — primary reference U.S. Government activity |
| 4437247 | 5/9 Secondary reference The Boeing Company |
NSN 1650-00-345-7253 is a Retainer,seal Hydraulic, manufactured by Triangle Mfg and Pump Co, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-345-7253 has 3 manufacturer part numbers on file: 4437247 (Triangle Mfg and Pump Co), 4437247 (Kitco Llc), 4437247 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company).
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 1650-00-345-7253 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.