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Technical Data Sheet
PartsTable / COMPONENT / 081518
081518 ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, overall_height: 0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, style_designator: PLAIN, seat_angle_in_deg: 46.300 MINIMUM AND 46.700 MAXIMUM, body_inside_diameter: 0.880 INCHES NOMINAL IN, body_outside_diameter: 1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM 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 4820-00-246-3095, 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
081518
NSN: 4820-00-246-3095
FSC: 4820
CAGE: 87708 — COOPER INDUSTRIES INC FLOW CONTROL DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
overall_height0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
style_designatorPLAIN
seat_angle_in_deg46.300 MINIMUM AND 46.700 MAXIMUM
body_inside_diameter0.880 INCHES NOMINAL IN
body_outside_diameter1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
material_document_and_classification21-0560,ACF INDUSTRIES INC MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN4820-00-246-3095
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 081518 · 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
•
BODY INSIDE DIAMETER: 0.880 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
SEATING SURFACE SHAPE: ANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: 21-0560,ACF INDUSTRIES INC MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
BODY OUTSIDE DIAMETER: 1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 46.300 MINIMUM AND 46.700 MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER0.880 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
SEATING SURFACE SHAPEANGULAR
MATERIAL DOCUMENT AND CLASSIFICATION21-0560,ACF INDUSTRIES INC MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
BODY OUTSIDE DIAMETER1.110 INCHES MINIMUM AND 1.120 INCHES MAXIMUM IN
SEAT ANGLE IN DEG46.300 MINIMUM AND 46.700 MAXIMUM
OVERALL HEIGHT0.307 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
312SGInterchangeable
interchangeable cross-reference
interchangeable
81502Interchangeable
interchangeable cross-reference
interchangeable
NDC00018Interchangeable
interchangeable cross-reference
interchangeable
81518Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 081518?
081518 is a BEARING,BALL,ANNULAR.
What parts can replace 081518?
There are 4 known substitutes for 081518: 312SG, 81502, NDC00018 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 081518?
081518 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-246-3095. 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