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Technical Data Sheet
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58646 — 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 INSULATION SLEEVING,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: PLASTIC TUBE, flexibility: FLEXIBLE, temp_rating: -20.0 FAHRENHEIT AND 220.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 1.375 INCHES NOMINAL IN, outside_diameter: 2.375 INCHES NOMINAL IN, special_features: WALL THICKNESS 0.500. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4720-00-629-8239, 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
58646
NSN: 4720-00-629-8239
FSC: 4720
CAGE: 99688 — BERGSTROM INC (USA)
SPECIFICATIONS
materialPLASTIC TUBE
flexibilityFLEXIBLE
temp_rating-20.0 FAHRENHEIT AND 220.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter1.375 INCHES NOMINAL IN
outside_diameter2.375 INCHES NOMINAL IN
special_featuresWALL THICKNESS 0.500
minimum_tensile_strength40 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleROUND
measuring_method_and_length36.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
nondefinitive_spec/std_dataT FORM
material_document_and_classificationMIL-P-15280, FORM T MIL SPEC SINGLE MATERIAL RESPONSE TUBE
NSN4720-00-629-8239
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 58646 · 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
•
OUTSIDE DIAMETER: 2.375 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: T FORM
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
TEMP RATING: -20.0 FAHRENHEIT AND 220.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-15280, FORM T MIL SPEC SINGLE MATERIAL RESPONSE TUBE
•
FLEXIBILITY: FLEXIBLE
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER2.375 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAT FORM
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER1.375 INCHES NOMINAL IN
TEMP RATING-20.0 FAHRENHEIT AND 220.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-15280, FORM T MIL SPEC SINGLE MATERIAL RESPONSE TUBE
FLEXIBILITYFLEXIBLE
SPECIAL FEATURESWALL THICKNESS 0.500
MINIMUM TENSILE STRENGTH40 POUNDS PER SQUARE INCH LBS
MATERIALPLASTIC TUBE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
R-180-FSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ARMAFLEX IIInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-P-15280InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
300521InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
58645InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-P-15280 FMTInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 58646?
58646 is a INSULATION SLEEVING,ELECTRICAL.
What parts can replace 58646?
There are 6 known substitutes for 58646: R-180-FS, ARMAFLEX II, MIL-P-15280 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 58646?
58646 is cataloged in the Federal Logistics Information System under NSN 4720-00-629-8239. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026