The Elbow,quick Disconnect, cataloged under National Stock Number 4730-00-649-9104, 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 Fluid Management, Inc. Div Dover Resources Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-649-9104 |
| Primary Part Number | 633K-4AL |
| Item Name | Elbow,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Dover Fluid Management, Inc. Div Dover Resources Inc. |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Style Designator | ELBOW |
| Quick Disconnect Nominal Size | 4.000 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Quick Disconnect Method | CAM-LOCKING 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 |
|---|---|
| 633K-4AL | Palumbo Bros (USA) |
| 633K-4AL PRIMARY | Dover Fluid Management, Inc. Div Dover Resources Inc. (USA) |
| 633K-4X4AL PRIMARY | Dover Fluid Management, Inc. Div Dover Resources Inc. (USA) |
| Reference | Meaning |
|---|---|
| 633K-4AL | 5/9 Secondary reference U.S. Government activity |
| 633K4IN | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 633K-4X4AL | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 633K4X4INAL | 5/9 Secondary reference U.S. Government activity |
| 633K-4AL | 5/9 Secondary reference Dover Resources Inc Dba Opw Engineered Systems |
| 633K-4X4AL | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-649-9104 is a Elbow,quick Disconnect, manufactured by Dover Fluid Management, Inc. Div Dover Resources Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-649-9104 has 3 manufacturer part numbers on file: 633K-4AL (Palumbo Bros), 633K-4AL (Dover Fluid Management, Inc. Div Dover Resources Inc.), 633K-4X4AL (Dover Fluid Management, Inc. Div Dover Resources Inc.).
Key specifications for 633K-4AL: Flow Angle: 90.0 DEGREES; Style Designator: ELBOW; Quick Disconnect Nominal Size: 4.000 INCHES ALL ENDS IN; Special Features: FIRST LEG LENGTH: 5.000 IN. NOMINAL; SECOND LEG LENGTH: 6.000 IN. NOMINAL IN. 5 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.