The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-673-5891, 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 Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-673-5891 |
| Primary Part Number | BVHC4-4M |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.88 INCHES IN |
| Operating Pressure | 2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.25 INCHES FIRST FLUID END CONNECTION IN |
| Specification/standard Data | ASME Y14.100-2017 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND ASME Y14.5-2009 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nominal Outside Diameter | 1.02 INCHES IN |
| Thread Quantity Per Inch | A18 FIRST FLUID END CONNECTION |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| BVHC4-4M PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| Reference | Meaning |
|---|---|
| BVHC4-4M | 5/9 Secondary reference U.S. Government activity |
| 11B4550056 | 7/2 Vendor item drawing reference Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 4730-01-673-5891 is a Coupling Half,quick Disconnect, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-673-5891 has 1 manufacturer part number on file: BVHC4-4M (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division).
Key specifications for BVHC4-4M: Nominal Width Across Flats: 0.88 INCHES IN; Overall Length: 20.9 INCHES NOMINAL IN; Operating Pressure: 2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Thread Size: 0.25 INCHES FIRST FLUID END CONNECTION IN. 7 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.