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6100X6 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6100X6: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE, connection_type: THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST ENDRIGHT-HAND FIRST END, mounting_position: HORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-278-5553, 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
6100X6
NSN: 4730-00-278-5553
NIINs: 002785553, 004978129
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
connection_typeTHREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST ENDRIGHT-HAND FIRST END
mounting_positionHORIZONTAL OR HORIZONTAL OR VERTICALVERTICAL
operating_pressure5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRINGSPRING
flow_control_deviceBALLBALL
nominal_thread_size0.250 INCHES FIRST END0.250 INCHES FIRST END IN
maximum_operating_temp-40.0 FAHRENHEIT FIRST RESPONSE-40.0 FAHRENHEIT FIRST RESPONSE DEGF
valve_operation_methodAUTOMATICAUTOMATIC
NSN4730-00-278-5553
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6100X6 · 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
•
WIDTH ACROSS FLATS: 0.563 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INVERTED NUT, TUBE, COMPRESSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND
•
SEAT RADIUS: 0.219 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.563 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
STYLE DESIGNATORINVERTED NUT, TUBE, COMPRESSION
MATERIAL DOCUMENT AND CLASSIFICATIONSAE CA360 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.609 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SEAT RADIUS0.219 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE9/16-20
SPECIAL FEATURES200PSI
SUBSTITUTES & CROSS-REFERENCES 3
106-10006Reference document
Same NSN cross-reference
Reference document — Secondary reference
181D 3-8IN.Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
81TS6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6100X6?
6100X6 is a INVERTED NUT,TUBE COUPLING.
What parts can replace 6100X6?
There are 3 known substitutes for 6100X6: 106-10006, 181D 3-8IN., 81TS6. Substitute compatibility should be verified for your specific system.
What is the NSN for 6100X6?
6100X6 is cataloged in the U.S. Government catalog under NSN 4730-00-278-5553. This indicates validated use in U.S. government and defense supply chains.
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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.