PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4-4730-8-8
4-4730-8-8 ✓ 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: 0.750 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-073-5971, 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
4-4730-8-8
NSN: 4730-00-073-5971
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (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_size0.750 INCHES FIRST END IN
nominal_overall_length3.203 INCHES IN
end_item_identificationJKN WASP CLASS LHD
thread_series_designatorUNF FIRST END
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_inside_diameter_hose_accommodated0.500 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-00-073-5971
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-4730-8-8 · 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 OVERALL LENGTH: 3.200 INCHES IN
•
FURNISHED ITEMS AND QUANTITY: 1 SOCKET
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.500 INCHES SECOND END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN
•
MATERIAL: NICKEL ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: UNF FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH3.200 INCHES IN
FURNISHED ITEMS AND QUANTITY1 SOCKET
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.500 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES FIRST END
CRITICALITY CODE JUSTIFICATIONZZZY
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
MATERIALNICKEL ALLOY OVERALL
THREAD SERIES DESIGNATORUNF FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
EF-1602A-0808Interchangeable
interchangeable cross-reference
interchangeable
CMC-4-5503-08-08Interchangeable
interchangeable cross-reference
interchangeable
M24787/2 GR II TYP AInterchangeable
interchangeable cross-reference
interchangeable
4730-8-8SF10Interchangeable
Same NIIN cross-reference
interchangeable
4-4730-8-8L1Interchangeable
Same NIIN cross-reference
interchangeable
4C4730-8-8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-4730-8-8?
4-4730-8-8 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 4-4730-8-8?
There are 11 known substitutes for 4-4730-8-8: EF-1602A-0808, CMC-4-5503-08-08, M24787/2 GR II TYP A and 8 more. Substitute compatibility should be verified for your specific system.
Is 4-4730-8-8 still available?
4-4730-8-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026