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Technical Data Sheet
PartsTable / COMPONENT / 18500N
18500N ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The TAPE,SOUND RECORDING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL, special_features: VALVE SIZE 1.500IN 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 4820-01-162-0181, 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
18500N
NSN: 4820-01-162-0181
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL
special_featuresVALVE SIZE 1.500IN IN
NSN4820-01-162-0181
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18500N · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 1.247 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
INSIDE DIAMETER: 1.182 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.247 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
INSIDE DIAMETER1.182 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
44040Interchangeable
interchangeable cross-reference
interchangeable
A44040Interchangeable
interchangeable cross-reference
interchangeable
18500NInterchangeable
interchangeable cross-reference
interchangeable
53391Interchangeable
interchangeable cross-reference
interchangeable
43877-00-58Interchangeable
interchangeable cross-reference
interchangeable
18500N PIECE 4A GROUP 1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18500N?
18500N is a TAPE,SOUND RECORDING.
What parts can replace 18500N?
There are 12 known substitutes for 18500N: 44040, A44040, 18500N and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18500N?
18500N is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-162-0181. 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