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Technical Data Sheet
PartsTable / COMPONENT / 66P
66P ✓ Verified by PartsTable
— · 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: COPPER ALLOY OVERALL, flexibility: FLEXIBLE, temp_rating: -75.0 FAHRENHEIT AND 170.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: BLACK, inside_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.375 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 4720-00-082-5853, 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
66P
NSN: 4720-00-082-5853
FSC: 4720
CAGE: 81412 — TREADWELL CORPORATION (DELAWARE) DBA TREADWELL CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flexibilityFLEXIBLE
temp_rating-75.0 FAHRENHEIT AND 170.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorBLACK
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
basic_shape_styleBATTERY POST
operating_pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
mounting_method_stylePOST CLAMP
end_item_identificationHEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK)
NSN4720-00-082-5853
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 66P · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
MEDIA FOR WHICH DESIGNED: OXYGEN, LIQUID SINGLE RESPONSE
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL: PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) TUBE
•
INSIDE DIAMETER: 0.251 INCHES NOMINAL IN
•
FLEXIBILITY: FLEXIBLE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
MEDIA FOR WHICH DESIGNEDOXYGEN, LIQUID SINGLE RESPONSE
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIALPLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) TUBE
INSIDE DIAMETER0.251 INCHES NOMINAL IN
FLEXIBILITYFLEXIBLE
INSIDE SURFACE CONDITIONSMOOTH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
44PCPInterchangeable
interchangeable cross-reference
interchangeable
19049-17T20CPInterchangeable
interchangeable cross-reference
interchangeable
19049PC17T20Interchangeable
interchangeable cross-reference
interchangeable
66P 3-8Interchangeable
interchangeable cross-reference
interchangeable
66PInterchangeable
interchangeable cross-reference
interchangeable
115-9249Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66P?
66P is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 66P?
There are 15 known substitutes for 66P: 44PCP, 19049-17T20CP, 19049PC17T20 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66P?
66P is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-082-5853. 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.
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Last verified: July 2026