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Technical Data Sheet
PartsTable / COMPONENT / CMC-4-5901-06-06
CMC-4-5901-06-06 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END, nominal_thread_size: 0.562 INCHES FIRST END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-255-1222, 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
CMC-4-5901-06-06
NSN: 4730-01-255-1222
FSC: 4730
CAGE: 53159 — CUSTOM HYDRAULIC & MACHINE, INC. DBA CUSTOM HYDRAULIC & MACHINE INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
nominal_thread_size0.562 INCHES FIRST END IN
nominal_overall_length3.100 INCHES IN
thread_series_designatorUNF FIRST END
nondefinitive_spec/std_dataG TYPE
specification/standard_data81349-MIL-H-24136/2 GOVERNMENT SPECIFICATION
furnished_items_and_quantity2 SOCKET SEGMENT AND 2 BOLT
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NUT
NSN4730-01-255-1222
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CMC-4-5901-06-06 · 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
•
THREAD CLASS: 2B FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SOCKET
•
SPECIFICATION/STANDARD DATA: 81349-MIL-H-24136/2 GOVERNMENT SPECIFICATION
•
NOMINAL OVERALL LENGTH: 3.100 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B FIRST END
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SOCKET
SPECIFICATION/STANDARD DATA81349-MIL-H-24136/2 GOVERNMENT SPECIFICATION
NOMINAL OVERALL LENGTH3.100 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE NIPPLE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
CONNECTION STYLESOCKET (HOSE) SECOND END
FURNISHED ITEMS AND QUANTITY2 SOCKET SEGMENT AND 2 BOLT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
FC7100-4Interchangeable
interchangeable cross-reference
interchangeable
CMC-4-5901-08-08Interchangeable
interchangeable cross-reference
interchangeable
CG08-08NJInterchangeable
interchangeable cross-reference
interchangeable
CMC-4-5901-10-08Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/2 GR XI TY AInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/2 GRX1 TYAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CMC-4-5901-06-06?
CMC-4-5901-06-06 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace CMC-4-5901-06-06?
There are 13 known substitutes for CMC-4-5901-06-06: FC7100-4, CMC-4-5901-08-08, CG08-08NJ and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CMC-4-5901-06-06?
CMC-4-5901-06-06 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-255-1222. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026