PartsTable
Technical Data Sheet
WWP521 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: STEEL OR IRON OVERALL, head_type: SOLID, seat_type: BEVELED, flow_angle: 90.0 DEGREES, leg_length: 0.875 INCHES NOMINAL ALL ENDS IN, sweep_type: SHORT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-012-7823, 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
WWP521
NSN: 4730-00-012-7823
FSC: 4730
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OR IRON OVERALL
head_typeSOLID
seat_typeBEVELED
flow_angle90.0 DEGREES
leg_length0.875 INCHES NOMINAL ALL ENDS IN
sweep_typeSHORT
reducer_typeCONCENTRIC
inlet_locationRIGHT-HAND SIDE SINGLE INLET
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_features45 DEG BEND;2.000 IN. PIPE, 11 1/2 NPT IN
style_designatorPLAIN W/CONCAVE SIDES
NSN4730-00-012-7823
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WWP521 · 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
SURFACE TREATMENT: ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FLOW ANGLE: 90.0 DEGREES
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH: 1.750 INCHES NOMINAL FIRST END IN
MAXIMUM OPERATING TEMP: 260.0 CELSIUS FIRST RESPONSE DEGC
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FLOW ANGLE90.0 DEGREES
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH1.750 INCHES NOMINAL FIRST END IN
MAXIMUM OPERATING TEMP260.0 CELSIUS FIRST RESPONSE DEGC
MAXIMUM OPERATING TEMP65.6 CELSIUS SECOND RESPONSE DEGC
LEG LENGTH2.450 INCHES NOMINAL SECOND END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
127-823Interchangeable
interchangeable cross-reference
interchangeable
8108516Interchangeable
interchangeable cross-reference
interchangeable
61013Interchangeable
interchangeable cross-reference
interchangeable
ME01903400003Interchangeable
interchangeable cross-reference
interchangeable
MS39230-7Interchangeable
Same NIIN cross-reference
interchangeable
ASME B16.3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WWP521?
WWP521 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace WWP521?
There are 9 known substitutes for WWP521: 127-823, 8108516, 61013 and 6 more. Substitute compatibility should be verified for your specific system.
Is WWP521 still available?
WWP521 is currently cancelled.
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