The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-268-9878, 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. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4730-01-268-9878 |
| Primary Part Number | FD40-1055-04-04 |
| 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 |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | INTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 0.250 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| FD40-1001-04-04 | Eaton Aeroquip Canada Inc (CAN) |
| C21-506249 | Schrader-Bridgeport International Inc Dba Schrader Automotive (USA) |
| FD40-1055-04-04 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| 5141-12 | Schrader-Bridgeport International Inc Dba Schrader Automotive (USA) |
| Reference | Meaning |
|---|---|
| 22 | 5/9 Secondary reference U.S. Government activity |
| A7-364-000675 | D/9 Drawing number reference only Grove U.s. Llc Dba Grove Us Llc |
| FD40-1001-04-04 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| 71-04M | 5/9 Secondary reference Parker Hannifin Corp Hose Products Div |
| 22 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-268-9878 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 4730-01-268-9878 has 4 manufacturer part numbers on file: FD40-1001-04-04 (Eaton Aeroquip Canada Inc), C21-506249 (Schrader-Bridgeport International Inc Dba Schrader Automotive), FD40-1055-04-04 (Danfoss Power Solutions II, Llc), 5141-12 (Schrader-Bridgeport International Inc Dba Schrader Automotive).
1 possible match (shared part number, not a government interchangeability claim): 1377-01-623-8631. Verify interchangeability with system specifications before substitution.
Key specifications for FD40-1055-04-04: Connection Style: PLAIN ALL ENDS; Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 9 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.
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.