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Technical Data Sheet
PartsTable / MRO / 52818
52818 ✓ Verified by PartsTable
Clementoni · MRO · MRO_GENERAL
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

RETICLE ASSEMBLY,OPTICAL INSTRUM. Key specifications include material: COPPER ALLOY, sight_height: 1.625 INCHES NOMINAL IN, thread_class: UNABLE TO DECODE, overall_height: 3.265 INCHES NOMINAL IN, overall_length: 2.000 INCHES NOMINAL IN, wall_thickness: 0.250 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 4720-00-020-3170, 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
MRO→ MRO_GENERAL→ 52818
NSN: 4720-00-020-3170
FSC: 4720
CAGE: 04NP0 — CONTITECH USA, INC DBA VEYANCE TECHNOLOGIES (USA)
SPECIFICATIONS
materialCOPPER ALLOY
sight_height1.625 INCHES NOMINAL IN
thread_classUNABLE TO DECODE
overall_height3.265 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
wall_thickness0.250 INCHES NOMINAL IN
working_length18.687 INCHES NOMINAL IN
inside_diameter1.750 INCHES NOMINAL IN
first_arm_length2.250 INCHES NOMINAL IN
overall_diameter0.719 INCHES NOMINAL IN
style_designatorANGLE PATTERN, SHIELDED FRONT OPENING
thread_directionUNABLE TO DECODE
NSN4720-00-020-3170
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 52818 · Clementoni ⚠ 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
•
MATERIAL: RUBBER SYNTHETIC COVER
•
FIRST ARM LENGTH: 2.250 INCHES NOMINAL IN
•
SECOND ARM LENGTH: 2.250 INCHES NOMINAL IN
•
FSC APPLICATION DATA: ENGINE COOLING SYSTEM,NONAIRCRAFT
•
STYLE DESIGNATOR: STRAIGHT CORRUGATED
•
WALL THICKNESS: 0.250 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.750 INCHES NOMINAL IN
•
WORKING LENGTH: 18.687 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC COVER
FIRST ARM LENGTH2.250 INCHES NOMINAL IN
SECOND ARM LENGTH2.250 INCHES NOMINAL IN
FSC APPLICATION DATAENGINE COOLING SYSTEM,NONAIRCRAFT
STYLE DESIGNATORSTRAIGHT CORRUGATED
WALL THICKNESS0.250 INCHES NOMINAL IN
INSIDE DIAMETER1.750 INCHES NOMINAL IN
WORKING LENGTH18.687 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1325-G303Interchangeable
interchangeable cross-reference
interchangeable
MILP20365AInterchangeable
interchangeable cross-reference
interchangeable
M14Interchangeable
interchangeable cross-reference
interchangeable
8134-3Interchangeable
interchangeable cross-reference
interchangeable
8134-1Interchangeable
interchangeable cross-reference
interchangeable
40538Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52818?
52818 is a RETICLE ASSEMBLY,OPTICAL INSTRUM manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 52818?
There are 20 known substitutes for 52818: 1325-G303, MILP20365A, M14 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 52818?
52818 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-020-3170. 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: July 2026