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Technical Data Sheet
PartsTable / COMPONENT / 49925B
49925B ✓ 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 RETAINER,WIPER RING,VALVE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, style_designator: PLAIN, body_inside_diameter: 8.000 INCHES NOMINAL IN, body_outside_diameter: 14.380 INCHES NOMINAL IN, seating_surface_shape: FLAT, end_item_identification: CLA-VAL CO BALLAST VALVE MODEL NO. 2403M,SIZE 8 IN.

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 4820-01-225-6898, 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
49925B
NSN: 4820-01-225-6898
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialIRON OVERALL
style_designatorPLAIN
body_inside_diameter8.000 INCHES NOMINAL IN
body_outside_diameter14.380 INCHES NOMINAL IN
seating_surface_shapeFLAT
end_item_identificationCLA-VAL CO BALLAST VALVE MODEL NO. 2403M,SIZE 8 IN. IN
material_document_and_classificationMIL-I-17166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4820-01-225-6898
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 49925B · 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: 8.000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 14.380 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-I-17166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER8.000 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER14.380 INCHES NOMINAL IN
END ITEM IDENTIFICATIONCLA-VAL CO BALLAST VALVE MODEL NO. 2403M,SIZE 8 IN. IN
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-I-17166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
49879 PIECE 6Interchangeable
interchangeable cross-reference
interchangeable
49879Interchangeable
interchangeable cross-reference
interchangeable
49873Interchangeable
interchangeable cross-reference
interchangeable
49879 PIECE 35Interchangeable
interchangeable cross-reference
interchangeable
49934DInterchangeable
interchangeable cross-reference
interchangeable
49934Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49925B?
49925B is a RETAINER,WIPER RING,VALVE.
What parts can replace 49925B?
There are 17 known substitutes for 49925B: 49879 PIECE 6, 49879, 49873 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 49925B?
49925B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-225-6898. 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