The Coupling Assembly,self-Sealing, cataloged under National Stock Number 4730-01-324-8538, 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 Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-324-8538 |
| Primary Part Number | 21605-2 |
| Item Name | Coupling Assembly,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit |
| Status | ACTIVE |
| Second Leg Length | 1.640 INCHES MINIMUM AND 2.110 INCHES MAXIMUM IN |
| Connection Style | FLARED FIRST QUICK DISCONNECT END |
| Connection Type | THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END |
| Style Designator | COUPLING ASSEMBLY |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST QUICK DISCONNECT END IN |
| Second End Relationship with First End | IDENTICAL |
| Mounting Flange Location | FIRST LEG |
| Nominal Thread Size | 1.312 INCHES FIRST QUICK DISCONNECT END IN |
| Seat Angle | 37.0 DEGREES |
| First Leg Length | 2.020 INCHES MINIMUM AND 2.360 INCHES MAXIMUM IN |
| Thread Class | 3A FIRST QUICK DISCONNECT END A |
| Thread Quantity Per Inch | 12 FIRST QUICK DISCONNECT END |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST QUICK DISCONNECT END |
| 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 |
|---|---|
| 114PS414-2 | The Boeing Company (USA) |
| 21605-2 PRIMARY | Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit (USA) |
| 7543337 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 711900-2 | 3/2 Design control — primary reference U.S. Government activity |
| 114PS414 | D/9 Drawing number reference only The Boeing Company |
| 711900-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-324-8538 is a Coupling Assembly,self-Sealing, manufactured by Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-324-8538 has 3 manufacturer part numbers on file: 114PS414-2 (The Boeing Company), 21605-2 (Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit), 7543337 (Pti Technologies Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-355-0522, 4140-01-433-5906. Verify interchangeability with system specifications before substitution.
Key specifications for 21605-2: Second Leg Length: 1.640 INCHES MINIMUM AND 2.110 INCHES MAXIMUM IN; Connection Style: FLARED FIRST QUICK DISCONNECT END; Connection Type: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END; Style Designator: COUPLING ASSEMBLY. 14 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.
NSN 4730-01-324-8538 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.