The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-895-9800, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-895-9800 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Nominal Length | 1.750 INCHES IN |
| Bolt Circle Nominal Diameter | 1.238 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Bolt Hole Nominal Diameter | 0.204 INCHES IN |
| Nominal Outside Diameter Tube Accommodated | 0.187 INCHES ALL ENDS IN |
| Quick Disconnect Nominal Size | 0.312 INCHES ALL ENDS IN |
| Mounting Flange Location | SECOND LEG |
| Leg Length | 0.548 INCHES NOMINAL IN |
| Basic Shape Style | TRIANGULAR STYLE 5 MUST HAVE 3 BOLT HOLES FIRST QUICK DISCONNECT END |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Bolt Hole Quantity | 2 |
| Nominal Width | 1.378 INCHES IN |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 18 ALL ENDS |
| Material | ALUMINUM ALLOY BODY |
| Quick Disconnect Method | PUSH-LOCK ALL ENDS |
| Thread Series Designator | UNS ALL ENDS |
| Nominal Thickness | 0.092 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| HE273-5002-0003 | 3/9 Design control — primary reference U.S. Government activity |
| 325000-21 | 5/9 Secondary reference Essex Industries, Inc. Dba Essex Industries |
| 325000-21 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-895-9800 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-895-9800: Connection Style: FLARED ALL ENDS; Nominal Length: 1.750 INCHES IN; Bolt Circle Nominal Diameter: 1.238 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. 21 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.