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S6110-21112-000 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

S6110-21112-000: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, thread_size: 1.500-20, thread_class: 3A A, thread_direction: RIGHT-HAND, surface_treatment: CADMIUM, fabrication_method: BAR STOCK, MACHINED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-674-9218, 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
S6110-21112-000
NSN: 4730-00-674-9218
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
thread_size1.500-20
thread_class3A A
thread_directionRIGHT-HAND
surface_treatmentCADMIUM
fabrication_methodBAR STOCK, MACHINED
casehardening_indicatorNOT CASEHARDENED
end_item_identificationHELICOPTER, SEA KING H-3
screw_thread_series_designatorUNEF
material_document_and_classificationMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
tube_outside_diameter_for_which_designed1.000 INCHES NOMINAL IN
NSN4730-00-674-9218
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: S6110-21112-000 · 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
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 1.500-20
•
SCREW THREAD SERIES DESIGNATOR: UNEF
•
SURFACE TREATMENT: CADMIUM
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE1.500-20
SCREW THREAD SERIES DESIGNATORUNEF
SURFACE TREATMENTCADMIUM
THREAD CLASS3A A
END ITEM IDENTIFICATIONHELICOPTER, SEA KING H-3
MATERIALSTEEL COMP 4130
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 1
S6110-21112Same 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 S6110-21112-000?
S6110-21112-000 is a INVERTED NUT,TUBE COUPLING.
What parts can replace S6110-21112-000?
There is 1 known substitute for S6110-21112-000: S6110-21112. Substitute compatibility should be verified for your specific system.
What is the NSN for S6110-21112-000?
S6110-21112-000 is cataloged in the U.S. Government catalog under NSN 4730-00-674-9218. 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.