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Technical Data Sheet
PartsTable / COMPONENT / MIL-E-17813
MIL-E-17813 ✓ 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

The EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SLEEVE, guide_type: INTERNAL, joint_type: SINGLE, design_type: CORRUGATED ELEMENT, overall_length: 6.000 INCHES NOMINAL IN, bolt_hole_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-139-3885, 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
MIL-E-17813
NSN: 4730-00-139-3885
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialNICKEL ALLOY SLEEVE
guide_typeINTERNAL
joint_typeSINGLE
design_typeCORRUGATED ELEMENT
overall_length6.000 INCHES NOMINAL IN
sleeve_quantity1
bolt_hole_diameter0.250 INCHES NOMINAL IN
bolt_hole_quantity5
end_connection_typeFLANGED
bolt_circle_diameter5.000 INCHES NOMINAL IN
traverse_maximum_length5.000 INCHES IN
working_pressure_rating23.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
NSN4730-00-139-3885
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MIL-E-17813 · 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 THREAD SIZE: 0.250 INCHES SECOND END IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
FURNISHED ITEMS AND QUANTITY: 1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
THREAD SERIES DESIGNATOR: UNS FIRST END
•
THREAD QUANTITY PER INCH: 24 FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE CA360 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 1.187 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
FURNISHED ITEMS AND QUANTITY1 FERRULE SLEEVE AND 1 SHORT COUPLING NUT
MATERIALCOPPER ALLOY 360 OVERALL
THREAD SERIES DESIGNATORUNS FIRST END
THREAD QUANTITY PER INCH24 FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONSAE CA360 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OVERALL LENGTH1.187 INCHES IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
SPECIFICATION/STANDARD DATA81349-MIL-E-17813 GOVERNMENT SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
4040990-6Interchangeable
interchangeable cross-reference
interchangeable
4040990Interchangeable
interchangeable cross-reference
interchangeable
DS2Interchangeable
interchangeable cross-reference
interchangeable
PM22214Interchangeable
interchangeable cross-reference
interchangeable
22214Interchangeable
interchangeable cross-reference
interchangeable
4024R1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-E-17813?
MIL-E-17813 is a EXPANSION JOINT,PIPE.
What parts can replace MIL-E-17813?
There are 28 known substitutes for MIL-E-17813: 4040990-6, 4040990, DS2 and 25 more. Substitute compatibility should be verified for your specific system.
Is MIL-E-17813 still available?
MIL-E-17813 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026