The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-264-0689, 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 Danfoss Power Solutions II, Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Oshkosh Defense Llc (CAGE 75Q65); Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems (CAGE 35683); Danfoss Power Solutions II, Llc (CAGE 01276) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-264-0689 |
| Primary Part Number | FD90-1021-04-04 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Danfoss Power Solutions II, Llc |
| 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 |
|---|---|
| 1545830 | Oshkosh Defense Llc (USA) |
| S502-25-2853 | Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems (CAN) |
| FD90-1021-04-04 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| Reference | Meaning |
|---|---|
| 1545830 | 5/9 Secondary reference Oshkosh Corp |
| 4730PL2092308 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| S111-25-2851 | D/9 Drawing number reference only Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems |
NSN 4730-01-264-0689 is a Coupling Half,quick Disconnect, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-264-0689 has 3 manufacturer part numbers on file: 1545830 (Oshkosh Defense Llc), S502-25-2853 (Integrated Distribution Systemslimited Partnershipdba Waterous Power Systems), FD90-1021-04-04 (Danfoss Power Solutions II, Llc).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-266-4238. 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.