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C7856-12-1D — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

C7856-12-1D: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, connection_type: THREADED EXTERNAL TUBE FIRST END BULKHEAD, connection_style: SWAGED W/ GROOVES (TUBE) ALL ENDS, style_designator: SWAGED ENDS W/BULKHEAD, surface_treatment: PLASTIC POLYTETRAFLUOROETHYLENE INSIDE, thread_series_designator: UNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-424-3673, 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
C7856-12-1D
NSN: 4730-01-424-3673
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14798 — DESIGNED METAL CONNECTIONS INC DBA PERMASWAGE USA DIV PERMASWAGE, A PCC COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
connection_typeTHREADED EXTERNAL TUBE FIRST END BULKHEAD
connection_styleSWAGED W/ GROOVES (TUBE) ALL ENDS
style_designatorSWAGED ENDS W/BULKHEAD
surface_treatmentPLASTIC POLYTETRAFLUOROETHYLENE INSIDE
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD
NSN4730-01-424-3673
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C7856-12-1D · 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: SWAGED W/ GROOVES (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END BULKHEAD
•
STYLE DESIGNATOR: SWAGED ENDS W/BULKHEAD
•
SURFACE TREATMENT: PLASTIC POLYTETRAFLUOROETHYLENE INSIDE
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWAGED W/ GROOVES (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END BULKHEAD
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORSWAGED ENDS W/BULKHEAD
SURFACE TREATMENTPLASTIC POLYTETRAFLUOROETHYLENE INSIDE
MATERIALALUMINUM ALLOY 6061 OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD
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 C7856-12-1D?
C7856-12-1D is a COUPLING,TUBE.
What is the NSN for C7856-12-1D?
C7856-12-1D is cataloged in the U.S. Government catalog under NSN 4730-01-424-3673. 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.