The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-169-6533, 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 Dover Resources Inc Dba Opw Engineered Systems. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Richards Industries Valve Group Jordan Valve Div (CAGE 21476); Dover Resources Inc Dba Opw Engineered Systems (CAGE 9H113) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-169-6533 |
| Primary Part Number | 1611AN-AL20 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dover Resources Inc Dba Opw Engineered Systems |
| 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 |
|---|---|
| 1611-A-2 IN. | Richards Industries Valve Group Jordan Valve Div (USA) |
| 1611AN-AL20 PRIMARY | Dover Resources Inc Dba Opw Engineered Systems (USA) |
| Reference | Meaning |
|---|---|
| 1611-A-2 | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 1611AN-2 | 7/2 Vendor item drawing reference Dover Fluid Management, Inc. Div Dover Resources Inc. |
| 1611A1590 | 5/9 Secondary reference U.S. Government activity |
| 1611AN-2 | 5/9 Secondary reference U.S. Government activity |
| 1002789 | 7/2 Vendor item drawing reference Tld Ace Corp Div Tld Ace |
| 1611AN-2 | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 1611-A-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-169-6533 is a Coupling Half,quick Disconnect, manufactured by Dover Resources Inc Dba Opw Engineered Systems, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-169-6533 has 2 manufacturer part numbers on file: 1611-A-2 IN. (Richards Industries Valve Group Jordan Valve Div), 1611AN-AL20 (Dover Resources Inc Dba Opw Engineered Systems).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-543-9560. Verify interchangeability with system specifications before substitution.
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 4730-01-169-6533 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.