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SS-QC4-D-400K2 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SS-QC4-D-400K2: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, connection_style: COMPRESSION FIRST QUICK DISCONNECT END, basic_shape_style: HEXAGON SECOND QUICK DISCONNECT END, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, part_name_assigned_by_controlling_agency: TUBEFITTING, BLACK KEY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-678-9105, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
SS-QC4-D-400K2
NSN: 4730-01-678-9105
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialSTEEL BODY
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_styleCOMPRESSION FIRST QUICK DISCONNECT END
basic_shape_styleHEXAGON SECOND QUICK DISCONNECT END
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
part_name_assigned_by_controlling_agencyTUBEFITTING, BLACK KEY
NSN4730-01-678-9105
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS-QC4-D-400K2 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: COMPRESSION FIRST QUICK DISCONNECT END
•
CONNECTION TYPE: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BASIC SHAPE STYLE: HEXAGON SECOND QUICK DISCONNECT END
•
MATERIAL: STEEL BODY
TECHNICAL CHARACTERISTICS
CONNECTION STYLECOMPRESSION FIRST QUICK DISCONNECT END
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BASIC SHAPE STYLEHEXAGON SECOND QUICK DISCONNECT END
PART NAME ASSIGNED BY CONTROLLING AGENCYTUBEFITTING, BLACK KEY
MATERIALSTEEL BODY
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SS-QC4-D-400K2?
SS-QC4-D-400K2 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for SS-QC4-D-400K2?
SS-QC4-D-400K2 is cataloged in the U.S. Government catalog under NSN 4730-01-678-9105. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.