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Technical Data Sheet
PartsTable / COMPONENT / D.G250U
D.G250U ✓ 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 D.G250U is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-306-6281, 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
D.G250U
NSN: 4730-01-306-6281
FSC: 4730
CAGE: 87400 — WARD MFG INC (USA)
SPECIFICATIONS
Part NumberD.G250U
NSN4730-01-306-6281
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D.G250U · 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: IRON ALLOY OVERALL
•
SPECIFICATION/STANDARD DATA: 81348-WW-U-351 GOVERNMENT SPECIFICATION
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPT SECOND END
•
SURFACE TREATMENT: ZINC OVERALL
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON ALLOY OVERALL
SPECIFICATION/STANDARD DATA81348-WW-U-351 GOVERNMENT SPECIFICATION
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT SECOND END
SPECIAL FEATURESWARD CLIMAX BRAND,FIG 92,BRASS TO IRON SEAT
SURFACE TREATMENTZINC OVERALL
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NONDEFINITIVE SPEC/STD DATA2 CLASS AND B TYPE
THREAD SERIES DESIGNATORNPT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
22U531Interchangeable
interchangeable cross-reference
interchangeable
B16.39Interchangeable
interchangeable cross-reference
interchangeable
WWU531-22TBInterchangeable
interchangeable cross-reference
interchangeable
WW-U-531Interchangeable
interchangeable cross-reference
interchangeable
WWU-531-03TAInterchangeable
interchangeable cross-reference
interchangeable
PT1280Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D.G250U?
D.G250U is a D.G250U.
What parts can replace D.G250U?
There are 18 known substitutes for D.G250U: 22U531, B16.39, WWU531-22TB and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D.G250U?
D.G250U is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-306-6281. 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