The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-042-4658, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-042-4658 |
| Primary Part Number | B1T10 |
| 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 | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Leg Length | 0.406 INCHES NOMINAL IN |
| Features Provided | SELF-SEALING |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Surface Treatment | COPPER ALLOY BODY |
| 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 |
|---|---|
| B1T10 PRIMARY | Tuthill Corp Hansen Coupling Div (USA) |
| 12MPB PRIMARY | Foster Manufacturing Co, Inc. Dba Foster Manufacturing Co (USA) |
| BST-N1M | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| Reference | Meaning |
|---|---|
| B1-T10 | 5/9 Secondary reference U.S. Government activity |
| BST-N1M | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-042-4658 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 4730-01-042-4658 has 3 manufacturer part numbers on file: B1T10 (Tuthill Corp Hansen Coupling Div), 12MPB (Foster Manufacturing Co, Inc. Dba Foster Manufacturing Co), BST-N1M (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division).
Key specifications for B1T10: Connection Style: PLAIN ALL ENDS; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF. 11 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.