The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-577-9558, 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 The Boeing Company Div Defense. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-577-9558 |
| Primary Part Number | 7M1261N16F |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | ALUMINUM ALLOY BODY |
| 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 |
|---|---|
| 7M1261N16F PRIMARY | The Boeing Company Div Defense (USA) |
| AE74537M PRIMARY | The Boeing Company Div Defense (USA) |
NSN 4730-01-577-9558 is a Coupling Half,quick Disconnect, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-577-9558 has 2 manufacturer part numbers on file: 7M1261N16F (The Boeing Company Div Defense), AE74537M (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-715-9121. Verify interchangeability with system specifications before substitution.
Key specifications for 7M1261N16F: Overall Length: 2.680 INCHES NOMINAL IN; Operating Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF; Special Features: ASSEMBLY CONSISTS OF ALUMINUM ADAPTER, GUIDE AND VALVE; ALSO CONSISTS OF CRES SPRING, STEEL COLLAR, TFE FILLED FLUOROSILICONE PACKING, AND POLYTETRAFLUOROETHYLENE RETAINER; ONE END MATES WITH 7M1262 COUPLING, THE OTHER END IN IAW AS4395E16 EXCEPT HEX FOR TUBE SIZE OF 1.000 INCHES IN. 3 specifications are 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.