The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-545-5227, 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 Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-545-5227 |
| Primary Part Number | TK4-26-316 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| Style Designator | MALE COUPLING HALF |
| Leg Length | 0.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 5277-180A ITEM 6 | Bvt Surface Fleet Support Ltd (halmatic Range) (GBR) |
| 5277-180A/6 | Bvt Surface Fleet Support Ltd (halmatic Range) (GBR) |
| TK4-26-316 PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| Reference | Meaning |
|---|---|
| TK4-26-316 | 5/9 Secondary reference Hoke Inc Dba Hoke Controls Houston Division |
NSN 4730-01-545-5227 is a Coupling Half,quick Disconnect, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-545-5227 has 3 manufacturer part numbers on file: 5277-180A ITEM 6 (Bvt Surface Fleet Support Ltd (halmatic Range)), 5277-180A/6 (Bvt Surface Fleet Support Ltd (halmatic Range)), TK4-26-316 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok).
Key specifications for TK4-26-316: Style Designator: MALE COUPLING HALF; Leg Length: 0.500 INCHES NOMINAL IN; Special Features: CONNECTOR PLUG, QUICK RELEASE; Material: STEEL CORROSION RESISTING OVERALL. 3 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.