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C3959X2 — CROSS,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

C3959X2: CROSS,PIPE.

The CROSS,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 0.641 INCHES NOMINAL ALL ENDS IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: WEAPON SYSTEM ESSENTIAL, nominal_thread_size: 0.125 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-028-9202, 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
C3959X2
NSN: 4730-01-028-9202
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length0.641 INCHES NOMINAL ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresWEAPON SYSTEM ESSENTIAL
nominal_thread_size0.125 INCHES FIRST END IN
end_item_identificationAIRCRAFT, EAGLE F-15
thread_series_designatorNPTF FIRST END
criticality_code_justificationFEAT
NSN4730-01-028-9202
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C3959X2 · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
LEG LENGTH: 0.641 INCHES NOMINAL ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CRITICALITY CODE JUSTIFICATIONFEAT
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
LEG LENGTH0.641 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
END ITEM IDENTIFICATIONAIRCRAFT, EAGLE F-15
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPTF FIRST END
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 3
25WJ02Reference document
Same NSN cross-reference
Reference document — Secondary reference
022X-2-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
02K02-2-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 C3959X2?
C3959X2 is a CROSS,PIPE.
What parts can replace C3959X2?
There are 3 known substitutes for C3959X2: 25WJ02, 022X-2-2, 02K02-2-2. Substitute compatibility should be verified for your specific system.
What is the NSN for C3959X2?
C3959X2 is cataloged in the U.S. Government catalog under NSN 4730-01-028-9202. This indicates validated use in U.S. government and defense supply chains.
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