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WW-U-516-75 — Technical Data Sheet

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— · 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 UNION,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_type: BALL-CONE, reducer_type: CONCENTRIC, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: SCREWED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-200-0311, 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
WW-U-516-75
NSN: 4730-00-200-0311
FSC: 4730
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_typeBALL-CONE
reducer_typeCONCENTRIC
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorSCREWED
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size2.500 INCHES ALL ENDS IN
coupling_flange_shapeHEXAGON
maximum_operating_temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length3.625 INCHES IN
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
NSN4730-00-200-0311
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WW-U-516-75 · 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
•
NOMINAL OVERALL LENGTH: 3.625 INCHES IN
•
STYLE DESIGNATOR: SCREWED
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND A STYLE
•
SEAT TYPE: BALL-CONE
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL OVERALL LENGTH3.625 INCHES IN
STYLE DESIGNATORSCREWED
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND A STYLE
SEAT TYPEBALL-CONE
MATERIALCOPPER ALLOY OVERALL
NOMINAL OVERALL LENGTH3.625 INCHES IN
REDUCER TYPECONCENTRIC
COUPLING FLANGE SHAPEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
AA59617-37InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
402InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
196284InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
775177-012InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
WW-U-516-57InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A-A-59617InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WW-U-516-75?
WW-U-516-75 is a UNION,PIPE.
What parts can replace WW-U-516-75?
There are 24 known substitutes for WW-U-516-75: AA59617-37, 402, 196284 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WW-U-516-75?
WW-U-516-75 is cataloged in the Federal Logistics Information System under NSN 4730-00-200-0311. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026