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Technical Data Sheet
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425255-2 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

425255-2: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include end_item_identification: 7-15 TON SEMI-TRAILER,XM971E1, general_characteristics_item_description: CONSISTS OF STEEL HOUSING PLATE; HARDENED STEEL ROLLER; IRON CASTED BAR; .38-24NFX.75 HEX. HD.

CAP SCREW AND LOCK WASHER. This part is cataloged in the U.S. Government catalog under NSN 4730-00-402-0033, 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
425255-2
NSN: 4730-00-402-0033
NIINs: 004020033, 011522378
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
end_item_identification7-15 TON SEMI-TRAILER,XM971E1
general_characteristics_item_descriptionCONSISTS OF STEEL HOUSING PLATE; HARDENED STEEL ROLLER; IRON CASTED BAR; .38-24NFX.75 HEX. HD. CAP SCREW AND LOCK WASHER
NSN4730-00-402-0033
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 425255-2 · 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
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
418423-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 425255-2?
425255-2 is a COUPLING,TUBE.
What parts can replace 425255-2?
There is 1 known substitute for 425255-2: 418423-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 425255-2?
425255-2 is cataloged in the U.S. Government catalog under NSN 4730-00-402-0033. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.