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R255R128WE8 — COUPLING HALF,SELF-SEALING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

R255R128WE8: COUPLING HALF,SELF-SEALING.

The COUPLING HALF,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, overall_length: 2.541 INCHES MAXIMUM IN, style_designator: MALE COUPLING HALF, operating_pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS, maximum_operating_temp: 121.0 CELSIUS SECOND RESPONSE DEGC, media_for_which_designed: WATER FIRST RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-475-2743, 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
R255R128WE8
NSN: 4730-01-475-2743
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79326 — TRANSDIGM INC DIV ADELWIGGINS GROUP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
overall_length2.541 INCHES MAXIMUM IN
style_designatorMALE COUPLING HALF
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
maximum_operating_temp121.0 CELSIUS SECOND RESPONSE DEGC
media_for_which_designedWATER FIRST RESPONSE
NSN4730-01-475-2743
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R255R128WE8 · 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
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 121.0 CELSIUS SECOND RESPONSE DEGC
•
MEDIA FOR WHICH DESIGNED: WATER FIRST RESPONSE
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.541 INCHES MAXIMUM IN
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MAXIMUM OPERATING TEMP121.0 CELSIUS SECOND RESPONSE DEGC
MAXIMUM OPERATING TEMP121.0 CELSIUS FIRST RESPONSE DEGC
MEDIA FOR WHICH DESIGNEDWATER FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDALCOHOL SECOND RESPONSE
MATERIALSTEEL CORROSION RESISTING BODY
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 1
11438156-4Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 R255R128WE8?
R255R128WE8 is a COUPLING HALF,SELF-SEALING.
What parts can replace R255R128WE8?
There is 1 known substitute for R255R128WE8: 11438156-4. Substitute compatibility should be verified for your specific system.
What is the NSN for R255R128WE8?
R255R128WE8 is cataloged in the U.S. Government catalog under NSN 4730-01-475-2743. 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.