The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-00-784-8181, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Danfoss Power Solutions II, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-784-8181 |
| Primary Part Number | 5400-S2-16 |
| Item Name | Coupling Half,self-Sealing |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Style Designator | MALE COUPLING HALF |
| Nominal Thickness | 0.188 INCHES IN |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| Nominal Width Across Flats | 1.875 INCHES IN |
| Nominal Thread Size | 1.750 INCHES ALL ENDS IN |
| Thread Series Designator | UN ALL ENDS |
| Surface Treatment | CADMIUM BODY |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Basic Shape Style | HEXAGON W/OUT BOLT HOLES MOUNTING FLANGE |
| Features Provided | SELF-SEALING |
| Material | STEEL BODY |
| Connection Type | THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION |
| Mounting Flange Location | FIRST LEG |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 91595124 | Thales Las France SAS (FRA) |
| 201155 | Triumph Thermal Systems - Maryland, Inc. (USA) |
| 5400-S2-16 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| 8985-16-20 | Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA) |
| 26878 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
| 50031735 | Bureau De Gestion Otan Hawk (FRA) |
| 91595124 | Thales Sa (FRA) |
NSN 4730-00-784-8181 is a Coupling Half,self-Sealing, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-784-8181 has 7 cross-referenced part numbers: 91595124 (Thales Las France SAS), 201155 (Triumph Thermal Systems - Maryland, Inc.), 5400-S2-16 (Danfoss Power Solutions II, Llc), 8985-16-20 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging), 26878 (Triumph Thermal Systems - Maryland, Inc.) and 2 more.
There are 9 known substitutes for 4730-00-784-8181: 4730-00-051-4679, 3110-00-100-3551, 5330-00-356-1525 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 5400-S2-16: Style Designator: MALE COUPLING HALF; Nominal Thickness: 0.188 INCHES IN; Connection Style: EXTERNAL SEAT FOR GASKET SEAL ALL ENDS; Nominal Width Across Flats: 1.875 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.