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CV177841 ✓ 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 ELBOW,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A ALL ENDS A, nominal_thread_size: 0.438 INCHES ALL ENDS IN, end_item_identification: 3990-01-442-1939 BAP (BRIDGE ADAPTER PALLET), thread_quantity_per_inch: 20 ALL ENDS, thread_series_designator: UN ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-388-9668, 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
CV177841
NSN: 4730-01-388-9668
FSC: 4730
CAGE: KCQ24 — TVS SUPPLY CHAIN SOLUTIONS LIMITED (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A ALL ENDS A
nominal_thread_size0.438 INCHES ALL ENDS IN
end_item_identification3990-01-442-1939 BAP (BRIDGE ADAPTER PALLET)
thread_quantity_per_inch20 ALL ENDS
thread_series_designatorUN ALL ENDS
furnished_items_and_quantity1 PREFORMED PACKING
nominal_outside_diameter_tube_accommodated0.250 INCHES ALL ENDS IN
NSN4730-01-388-9668
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CV177841 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 PREFORMED PACKING
•
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
•
THREAD QUANTITY PER INCH: 20 ALL ENDS
•
MATERIAL: STEEL OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: UN ALL ENDS
•
THREAD CLASS: 2A ALL ENDS A
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
END ITEM IDENTIFICATION3990-01-442-1939 BAP (BRIDGE ADAPTER PALLET)
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
THREAD QUANTITY PER INCH20 ALL ENDS
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORUN ALL ENDS
THREAD CLASS2A ALL ENDS A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
SAE J514 4-4 070220CAInterchangeable
interchangeable cross-reference
interchangeable
J522-4SInterchangeable
interchangeable cross-reference
interchangeable
17K3Interchangeable
interchangeable cross-reference
interchangeable
16556Interchangeable
interchangeable cross-reference
interchangeable
4C50X-SInterchangeable
interchangeable cross-reference
interchangeable
35279876Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CV177841?
CV177841 is a ELBOW,TUBE TO BOSS.
What parts can replace CV177841?
There are 8 known substitutes for CV177841: SAE J514 4-4 070220CA, J522-4S, 17K3 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CV177841?
CV177841 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-388-9668. 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