PartsTable
Technical Data Sheet
803-2177142-51X-02A ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2B, overall_height: 2.275 INCHES NOMINAL IN, shoulder_width: 0.560 INCHES NOMINAL IN, shoulder_height: 1.156 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 4820-01-067-9924, 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
803-2177142-51X-02A
NSN: 4820-01-067-9924
FSC: 4820
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL
seat_angle45.0 DEGREES NOMINAL
thread_class2B
overall_height2.275 INCHES NOMINAL IN
shoulder_width0.560 INCHES NOMINAL IN
shoulder_height1.156 INCHES NOMINAL IN
outside_diameter4.125 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size2.500 INCHES IN
thread_quantity_per_inch12
thread_series_designatorUN
NSN4820-01-067-9924
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 803-2177142-51X-02A · 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: 4.125 INCHES NOMINAL IN
THREAD SERIES DESIGNATOR: UN
THREAD QUANTITY PER INCH: 12
MATERIAL: STEEL
SHOULDER WIDTH: 0.560 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 2.500 INCHES IN
STYLE DESIGNATOR: PLUG
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT2.275 INCHES NOMINAL IN
OUTSIDE DIAMETER4.125 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUN
THREAD QUANTITY PER INCH12
MATERIALSTEEL
SHOULDER WIDTH0.560 INCHES NOMINAL IN
NOMINAL THREAD SIZE2.500 INCHES IN
STYLE DESIGNATORPLUG
SEAT ANGLE45.0 DEGREES NOMINAL
SHOULDER HEIGHT1.156 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
803-2177142Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-15Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-51X-3AInterchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-9AInterchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-12Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-2177142-51X-02A?
803-2177142-51X-02A is a DISK,VALVE.
What parts can replace 803-2177142-51X-02A?
There are 11 known substitutes for 803-2177142-51X-02A: 803-2177142, 803-2177142-5XX-15, 803-2177142-51X-3A and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-2177142-51X-02A?
803-2177142-51X-02A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-067-9924. This indicates validated use in U.S. government and defense supply chains.
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