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PartsTable / COMPONENT / B-45528 PART 938-A
B-45528 PART 938-A ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 1.120 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.238 INCHES NOMINAL IN, body_inside_diameter: 0.880 INCHES NOMINAL IN, body_outside_diameter: 0.750 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 4820-01-117-0109, 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-45528 PART 938-A
NSN: 4820-01-117-0109
FSC: 4820
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter1.120 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.238 INCHES NOMINAL IN
body_inside_diameter0.880 INCHES NOMINAL IN
body_outside_diameter0.750 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.360 INCHES NOMINAL IN
NSN4820-01-117-0109
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-45528 PART 938-A · 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
•
FLANGE DIAMETER: 1.120 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.880 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.238 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SEATING SURFACE SHAPE: FLAT
•
STYLE DESIGNATOR: PLAIN FLANGED
•
FLANGE SEAT TO DISK END HEIGHT: 0.360 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER1.120 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.880 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.238 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
FLANGE SEAT TO DISK END HEIGHT0.360 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
938AInterchangeable
interchangeable cross-reference
interchangeable
257Interchangeable
interchangeable cross-reference
interchangeable
8169928Interchangeable
interchangeable cross-reference
interchangeable
CV2141UInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-45528 PART 938-A?
B-45528 PART 938-A is a SEAT,VALVE.
What parts can replace B-45528 PART 938-A?
There are 4 known substitutes for B-45528 PART 938-A: 938A, 257, 8169928 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-45528 PART 938-A?
B-45528 PART 938-A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-117-0109. 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