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PartsTable / COMPONENT / 20039H91SS
20039H91SS ✓ 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

RESISTOR,FIXED,WIRE WOUND,NONIND. Key specifications include criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-088-7460, 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
20039H91SS
NSN: 4820-01-088-7460
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN4820-01-088-7460
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20039H91SS · 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
•
BOLT CIRCLE NOMINAL DIAMETER: 2.375 INCHES ALL ENDS IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE SEAT
•
BOLT HOLE QUANTITY: 4 ALL ENDS
•
FLOW CONTROL DEVICE: DISK
•
VALVE OPERATION METHOD: AUTOMATIC
•
VALVE SIZE: 0.500 INCHES IN
•
FEATURES PROVIDED: PRESSURE TIGHT OUTLET SIDE
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE NOMINAL DIAMETER2.375 INCHES ALL ENDS IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE SEAT
BOLT HOLE QUANTITY4 ALL ENDS
FLOW CONTROL DEVICEDISK
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE0.500 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A351,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE BODY
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
CONNECTION TYPEFLANGE ALL ENDS
MATERIALSTEEL COMP 303 STEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1105360Interchangeable
interchangeable cross-reference
interchangeable
20039Interchangeable
interchangeable cross-reference
interchangeable
1100140KInterchangeable
interchangeable cross-reference
interchangeable
402Interchangeable
interchangeable cross-reference
interchangeable
1302Interchangeable
interchangeable cross-reference
interchangeable
12201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20039H91SS?
20039H91SS is a RESISTOR,FIXED,WIRE WOUND,NONIND.
What parts can replace 20039H91SS?
There are 14 known substitutes for 20039H91SS: 1105360, 20039, 1100140K and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20039H91SS?
20039H91SS is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-088-7460. 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