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PartsTable / COMPONENT / 992-D PIECE 18
992-D PIECE 18 ✓ 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

INTERFACE UNIT,COMMUNICATION EQU. Key specifications include material: COPPER ALLOY OVERALL, flange_diameter: 4.000 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 2.563 INCHES NOMINAL IN, body_inside_diameter: 2.250 INCHES NOMINAL IN, body_outside_diameter: 2.875 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 4820-01-131-3150, 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
992-D PIECE 18
NSN: 4820-01-131-3150
FSC: 4820
CAGE: 75545 — LAWLER MANUFACTURING COMPANY, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_diameter4.000 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height2.563 INCHES NOMINAL IN
body_inside_diameter2.250 INCHES NOMINAL IN
body_outside_diameter2.875 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.375 INCHES NOMINAL IN
NSN4820-01-131-3150
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 992-D PIECE 18 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
SEATING SURFACE SHAPE: FLAT
•
UNDER FLANGE HEIGHT: 2.563 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.875 INCHES NOMINAL IN
•
FLANGE DIAMETER: 4.000 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 0.375 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORPLAIN FLANGED
SEATING SURFACE SHAPEFLAT
UNDER FLANGE HEIGHT2.563 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.875 INCHES NOMINAL IN
FLANGE DIAMETER4.000 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL IN
BODY INSIDE DIAMETER2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
6264302Interchangeable
interchangeable cross-reference
interchangeable
87761Interchangeable
interchangeable cross-reference
interchangeable
992DInterchangeable
interchangeable cross-reference
interchangeable
992-D-21Interchangeable
interchangeable cross-reference
interchangeable
2941Interchangeable
interchangeable cross-reference
interchangeable
2941-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 992-D PIECE 18?
992-D PIECE 18 is a INTERFACE UNIT,COMMUNICATION EQU.
What parts can replace 992-D PIECE 18?
There are 17 known substitutes for 992-D PIECE 18: 6264302, 87761, 992D and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 992-D PIECE 18?
992-D PIECE 18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-131-3150. 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