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Technical Data Sheet
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WW-T-799 — Technical Data Sheet

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— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The TUBE,METALLIC,SPECIAL is a the manufacturer industrial component. Key specifications include diameter: 0.500 INCHES NOMINAL IN, material: COPPER, leg_length: 4.000 INCHES NOMINAL ALL ENDS IN, construction: SEAMLESS, heat_treatment: HARD DRAWN, wall_thickness: 0.035 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-062-5308, 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-T-799
NSN: 4710-00-062-5308
FSC: 4710
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
diameter0.500 INCHES NOMINAL IN
materialCOPPER
leg_length4.000 INCHES NOMINAL ALL ENDS IN
constructionSEAMLESS
heat_treatmentHARD DRAWN
wall_thickness0.035 INCHES NOMINAL IN
connection_typeUNTHREADED EXTERNAL TUBE FIRST END
first_end_stylePLAIN
connection_stylePLAIN (TUBE) ALL ENDS
special_featuresCHANGE INC; FSC; FIIG.
features_providedCOILED
operating_pressure340.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
NSN4710-00-062-5308
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: WW-T-799 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DIAMETER: 0.375 INCHES NOMINAL IN
•
MATERIAL: COPPER
•
HEAT TREATMENT: HARD DRAWN
•
NONDEFINITIVE SPEC/STD DATA: L TYPE AND 1 CLASS
•
OPERATING PRESSURE: 900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
MEASURING METHOD AND LENGTH: 240.000 INCHES NOMINAL STANDARD IN
•
MAXIMUM OPERATING TEMP: 149.0 CELSIUS DEGC
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN ROUND
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER0.375 INCHES NOMINAL IN
MATERIALCOPPER
HEAT TREATMENTHARD DRAWN
NONDEFINITIVE SPEC/STD DATAL TYPE AND 1 CLASS
OPERATING PRESSURE900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MEASURING METHOD AND LENGTH240.000 INCHES NOMINAL STANDARD IN
MAXIMUM OPERATING TEMP149.0 CELSIUS DEGC
CROSS-SECTIONAL SHAPE STYLEPLAIN ROUND
FIRST END STYLEPLAIN
CONSTRUCTIONSEAMLESS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
639-59Same_fsc
same_fsc cross-reference
same_fsc
639-511Same_fsc
same_fsc cross-reference
same_fsc
639-513Same_fsc
same_fsc cross-reference
same_fsc
128EC60044-1Same_fsc
same_fsc cross-reference
same_fsc
975457-1Same_fsc
same_fsc cross-reference
same_fsc
ASTM-B88Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WW-T-799?
WW-T-799 is a TUBE,METALLIC,SPECIAL.
What parts can replace WW-T-799?
There are 6 known substitutes for WW-T-799: 639-59, 639-511, 639-513 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WW-T-799?
WW-T-799 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-062-5308. 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: September 2026