The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-170-2454, 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 Caterpillar Inc Div Caterpillar Defense. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (CAGE 78357); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (CAGE 7DU54); Finning (uk) Ltd (CAGE U8468) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-170-2454 |
| Primary Part Number | 6V3989 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| 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 |
|---|---|
| 5414-11 | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (USA) |
| 6V3989 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 6V3989 | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| 6V-3989 | Finning (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 6V3989 | 5/9 Secondary reference Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn |
| 10021815 | 5/1 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| 6V3989 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-170-2454 is a Coupling Half,quick Disconnect, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-170-2454 has 4 manufacturer part numbers on file: 5414-11 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division), 6V3989 (Caterpillar Inc Div Caterpillar Defense), 6V3989 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division), 6V-3989 (Finning (uk) Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-622-7243. 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.
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.