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J8-12C-B — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

J8-12C-B: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 0.66 INCHES NOMINAL FIRST END IN, nominal_length: 1.85 INCHES ALL ENDS IN, connection_type: THREADED INTERNAL PIPE SECOND END, special_features: THRU HOLE:0.39 INCH IN, style_designator: FLARED W/ CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-646-8520, 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
J8-12C-B
NSN: 4730-01-646-8520
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79926 — SSP FITTINGS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length0.66 INCHES NOMINAL FIRST END IN
nominal_length1.85 INCHES ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE SECOND END
special_featuresTHRU HOLE:0.39 INCH IN
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.75 INCHES ALL ENDS IN
nominal_outside_diameter0.50 INCHES ALL ENDS IN
thread_quantity_per_inch14 SECOND END
nominal_width_across_flats1.250 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyADAPTER
NSN4730-01-646-8520
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J8-12C-B · 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
•
NOMINAL WIDTH ACROSS FLATS: 1.250 INCHES ALL ENDS IN
•
NOMINAL LENGTH: 1.85 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
LEG LENGTH: 0.66 INCHES NOMINAL FIRST END IN
•
NOMINAL THREAD SIZE: 0.75 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
NOMINAL WIDTH ACROSS FLATS1.250 INCHES ALL ENDS IN
NOMINAL LENGTH1.85 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
LEG LENGTH0.66 INCHES NOMINAL FIRST END IN
LEG LENGTH0.75 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.75 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER0.50 INCHES ALL ENDS IN
SPECIAL FEATURESTHRU HOLE:0.39 INCH IN
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is J8-12C-B?
J8-12C-B is a COUPLING,PIPE.
What is the NSN for J8-12C-B?
J8-12C-B is cataloged in the U.S. Government catalog under NSN 4730-01-646-8520. 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.