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Technical Data Sheet
PartsTable / COMPONENT / 1L8U
1L8U ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The INSULATOR,FEEDTHRU is a the manufacturer industrial component. Key specifications include flange_thickness: 0.250 INCHES NOMINAL IN, gasket_thickness: 0.130 INCHES NOMINAL IN, outside_diameter: 2.500 INCHES NOMINAL IN, style_designator: DOUBLE, BOWL, center_stud_length: 1.990 INCHES NOMINAL IN, mounting_hole_diameter: 0.140 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-524-6759, 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
1L8U
NSN: 5970-00-524-6759
FSC: 5970
CAGE: 80058 — JOINT ELECTRONICS TYPE DESIGNATION SYSTEM (USA)
SPECIFICATIONS
flange_thickness0.250 INCHES NOMINAL IN
gasket_thickness0.130 INCHES NOMINAL IN
outside_diameter2.500 INCHES NOMINAL IN
style_designatorDOUBLE, BOWL
center_stud_length1.990 INCHES NOMINAL IN
mounting_hole_diameter0.140 INCHES NOMINAL IN
height_above_mounting_surface1.620 INCHES NOMINAL IN
mounting_bolt_circle_diameter2.250 INCHES NOMINAL IN
NSN5970-00-524-6759
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSULATOR,FEEDTHRU TITLE COMPONENT PN 1L8U MFR INSULATOR,FEEDTHRU
KEY FEATURES
•
STYLE DESIGNATOR: DOUBLE, BOWL
•
MOUNTING HOLE DIAMETER: 0.140 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.250 INCHES NOMINAL IN
•
GASKET THICKNESS: 0.130 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
HEIGHT ABOVE MOUNTING SURFACE: 1.620 INCHES NOMINAL IN
•
CENTER STUD LENGTH: 1.990 INCHES NOMINAL IN
•
MOUNTING BOLT CIRCLE DIAMETER: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORDOUBLE, BOWL
MOUNTING HOLE DIAMETER0.140 INCHES NOMINAL IN
FLANGE THICKNESS0.250 INCHES NOMINAL IN
GASKET THICKNESS0.130 INCHES NOMINAL IN
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
HEIGHT ABOVE MOUNTING SURFACE1.620 INCHES NOMINAL IN
CENTER STUD LENGTH1.990 INCHES NOMINAL IN
MOUNTING BOLT CIRCLE DIAMETER2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MS25051-1Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-7965Interchangeable
interchangeable cross-reference
interchangeable
E1795-33Interchangeable
interchangeable cross-reference
interchangeable
14403Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-70 TY1SEBSTBInterchangeable
interchangeable cross-reference
interchangeable
12934Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1L8U?
1L8U is a INSULATOR,FEEDTHRU.
What parts can replace 1L8U?
There are 20 known substitutes for 1L8U: MS25051-1, MIL-A-7965, E1795-33 and 17 more. Substitute compatibility should be verified for your specific system.
Is 1L8U still available?
1L8U is currently cancelled.
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Last verified: July 2026