The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-577-7390, 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 Snap-Tite Inc Dba Snap Tite Solenoid Valve Div. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-577-7390 |
| Primary Part Number | SPEAN6-6-57 |
| Item Name | Coupling Half,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Snap-Tite Inc Dba Snap Tite Solenoid Valve Div |
| Status | ACTIVE |
| Connection Style | FLARED ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION |
| Connection Type | EXTERNAL QUICK DISCONNECT ALL ENDS |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Leg Length | 1.125 INCHES NOMINAL IN |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES |
| Surface Treatment | PASSIVATE BODY |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL BODY |
| Quick Disconnect Method | PUSH-LOCK ALL ENDS |
| Thread Series Designator | UNF 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 |
|---|---|
| SPEAN6-6-57 PRIMARY | Snap-Tite Inc Dba Snap Tite Solenoid Valve Div (USA) |
| Reference | Meaning |
|---|---|
| S6PEN6-6-57 | 5/9 Secondary reference Snap-Tite Inc Dba Snap Tite Solenoid Valve Div |
| 2134227-2 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 4730-00-577-7390 is a Coupling Half,quick Disconnect, manufactured by Snap-Tite Inc Dba Snap Tite Solenoid Valve Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-577-7390 has 1 manufacturer part number on file: SPEAN6-6-57 (Snap-Tite Inc Dba Snap Tite Solenoid Valve Div).
Key specifications for SPEAN6-6-57: Connection Style: FLARED ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION; Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Style Designator: MALE COUPLING HALF. 14 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.