The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-050-5773, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (CAGE 58536) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-050-5773 |
| Primary Part Number | AA59439-005-08-00-B |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| 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 |
|---|---|
| AA59439-005-08-00-B | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| MIL-C-4109 | 5/9 Secondary reference U.S. Government activity |
| AA59439-05-08-00-B | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 50100 | 5/9 Secondary reference Tuthill Corp Hansen Coupling Div |
| M4109-05 08 00 B | 5/9 Secondary reference U.S. Government activity |
| M4109-05 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| A-A-59439 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 4730-01-050-5773 is a Coupling Half,quick Disconnect, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-050-5773 has 1 manufacturer part number on file: AA59439-005-08-00-B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
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.