The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-834-9228, 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 Tuthill Corp Hansen Coupling Div. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-834-9228 |
| Primary Part Number | B12K46 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Tuthill Corp Hansen Coupling Div |
| Status | ACTIVE |
| Connection Style | PLAIN ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END |
| Style Designator | MALE COUPLING HALF |
| Quick Disconnect Nominal Size | 1.500 INCHES ALL ENDS IN |
| Leg Length | 0.828 INCHES MINIMUM AND 0.953 INCHES MAXIMUM IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Test Data Document | 90598-MAT88478-4 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | COPPER ALLOY BODY |
| Quick Disconnect Method | PUSH-PULL ALL ENDS |
| Thread Series Designator | NPTF 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 |
|---|---|
| B12K46 PRIMARY | Tuthill Corp Hansen Coupling Div (USA) |
| BH12-61N | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| MAT88478-4 | Drs Environmental Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| BH12-61N | 5/9 Secondary reference U.S. Government activity |
| 6407-106 | 5/9 Secondary reference U.S. Government activity |
| MAT88478-4 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-834-9228 is a Coupling Half,quick Disconnect, manufactured by Tuthill Corp Hansen Coupling Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-834-9228 has 3 manufacturer part numbers on file: B12K46 (Tuthill Corp Hansen Coupling Div), BH12-61N (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division), MAT88478-4 (Drs Environmental Systems Inc).
Key specifications for B12K46: Connection Style: PLAIN ALL ENDS; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END; Style Designator: MALE COUPLING HALF. 12 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.