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PartsTable / COMPONENT / B45112
B45112 ✓ 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: PLASTIC POLYAMIDE NYLON OVERALL, flange_diameter: 0.375 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 30.000 NOMINAL, under_flange_height: 0.156 INCHES NOMINAL IN, body_inside_diameter: 0.094 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 4820-01-011-8263, 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
B45112
NSN: 4820-01-011-8263
FSC: 4820
CAGE: 16004 — DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
flange_diameter0.375 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg30.000 NOMINAL
under_flange_height0.156 INCHES NOMINAL IN
body_inside_diameter0.094 INCHES NOMINAL IN
body_outside_diameter0.253 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.094 INCHES NOMINAL IN
NSN4820-01-011-8263
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B45112 · 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
•
BODY INSIDE DIAMETER: 0.094 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
SEATING SURFACE SHAPE: ANGULAR
•
UNDER FLANGE HEIGHT: 0.156 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.253 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.375 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 30.000 NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER0.094 INCHES NOMINAL IN
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
STYLE DESIGNATORPLAIN FLANGED
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.156 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.253 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
FLANGE DIAMETER0.375 INCHES NOMINAL IN
SEAT ANGLE IN DEG30.000 NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.094 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
45112AInterchangeable
interchangeable cross-reference
interchangeable
45112Interchangeable
interchangeable cross-reference
interchangeable
11012-A516Interchangeable
interchangeable cross-reference
interchangeable
TABLE 5 D2 1/2IN W1/2INInterchangeable
interchangeable cross-reference
interchangeable
C45112Interchangeable
interchangeable cross-reference
interchangeable
45019Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B45112?
B45112 is a SEAT,VALVE.
What parts can replace B45112?
There are 13 known substitutes for B45112: 45112A, 45112, 11012-A516 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B45112?
B45112 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-011-8263. 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