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Technical Data Sheet
PartsTable / COMPONENT / 820-2178500-2
820-2178500-2 ✓ 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 VALVE,GLOBE is a the manufacturer industrial component. Key specifications include style_designator: STRAIGHT THRU, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY SIZE 1 IN. AND UNCAPPED 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 4820-00-959-7669, 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
820-2178500-2
NSN: 4820-00-959-7669
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
style_designatorSTRAIGHT THRU
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY SIZE 1 IN. AND UNCAPPED IN
NSN4820-00-959-7669
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 820-2178500-2 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
STYLE DESIGNATOR: STRAIGHT THRU
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY SIZE 1 IN. AND UNCAPPED IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
STYLE DESIGNATORSTRAIGHT THRU
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY SIZE 1 IN. AND UNCAPPED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MIL-I-18422 TY3STCInterchangeable
interchangeable cross-reference
interchangeable
711FSAZInterchangeable
interchangeable cross-reference
interchangeable
52925Interchangeable
interchangeable cross-reference
interchangeable
A540T027-117Interchangeable
interchangeable cross-reference
interchangeable
025996-0021Interchangeable
interchangeable cross-reference
interchangeable
5310008352036Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 820-2178500-2?
820-2178500-2 is a VALVE,GLOBE.
What parts can replace 820-2178500-2?
There are 19 known substitutes for 820-2178500-2: MIL-I-18422 TY3STC, 711FSAZ, 52925 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 820-2178500-2?
820-2178500-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-959-7669. 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