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B-32978 ✓ 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 STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 70.0 DEGREES NOMINAL, thread_class: 2B, overall_height: 1.255 INCHES NOMINAL IN, outside_diameter: 2.153 INCHES NOMINAL IN, style_designator: PLUG. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-084-0486, 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
B-32978
NSN: 4820-01-084-0486
FSC: 4820
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
materialSTEEL
seat_angle70.0 DEGREES NOMINAL
thread_class2B
overall_height1.255 INCHES NOMINAL IN
outside_diameter2.153 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size1.438 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUN
valve_size_for_which_designed2.000 INCHES IN
valve_type_for_which_designedGLOBE
NSN4820-01-084-0486
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-32978 · 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: STEEL CORROSION RESISTING
•
VALVE TYPE FOR WHICH DESIGNED: GLOBE
•
VALVE SIZE FOR WHICH DESIGNED: 2.000 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
VALVE TYPE FOR WHICH DESIGNEDGLOBE
VALVE SIZE FOR WHICH DESIGNED2.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
19241Interchangeable
interchangeable cross-reference
interchangeable
PA11369Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
5196229Interchangeable
interchangeable cross-reference
interchangeable
269HMS130Interchangeable
interchangeable cross-reference
interchangeable
72609Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-32978?
B-32978 is a STEM,FLUID VALVE.
What parts can replace B-32978?
There are 12 known substitutes for B-32978: 19241, PA11369, AMS-QQ-A-200/11 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-32978?
B-32978 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-084-0486. 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