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JCM-10543-121 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

JCM-10543-121: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316L OVERALL, thread_class: 3A SECOND END A, connection_type: UNTHREADED INTERNAL TUBE FIRST END, connection_style: FLARED W/ GASKET SEAL (BOSS) SECOND END, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 2.500 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-268-0222, 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
JCM-10543-121
NSN: 4730-01-268-0222
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 58905 — STRIKE WEAPONS AND UNMANNED AVIATION (USA)
SPECIFICATIONS
materialSTEEL COMP 316L OVERALL
thread_class3A SECOND END A
connection_typeUNTHREADED INTERNAL TUBE FIRST END
connection_styleFLARED W/ GASKET SEAL (BOSS) SECOND END
surface_treatmentPASSIVATE OVERALL
nominal_thread_size2.500 INCHES SECOND END IN
nominal_overall_length3.120 INCHES IN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) SECOND END
material_document_and_classificationQQ-S-763,COND-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated2.000 INCHES FIRST END IN
surface_treatment_document_and_classificationQQ-P-35,TYPE1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-268-0222
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: JCM-10543-121 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TYPE1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 3.120 INCHES IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COND-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 2.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) SECOND END
CONNECTION STYLESOCKET (TUBE) FIRST END
NOMINAL OVERALL LENGTH3.120 INCHES IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED2.000 INCHES FIRST END IN
NOMINAL THREAD SIZE2.500 INCHES SECOND END IN
SURFACE TREATMENTPASSIVATE OVERALL
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 2
JCM-10543Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
JCM-10542-121Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is JCM-10543-121?
JCM-10543-121 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace JCM-10543-121?
There are 2 known substitutes for JCM-10543-121: JCM-10543, JCM-10542-121. Substitute compatibility should be verified for your specific system.
What is the NSN for JCM-10543-121?
JCM-10543-121 is cataloged in the U.S. Government catalog under NSN 4730-01-268-0222. 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.