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88426 5IN PIECE — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

88426 5IN PIECE: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL UNS J03002 OVERALL, overall_height: 2.750 INCHES MINIMUM AND 2.765 INCHES MAXIMUM IN, style_designator: PLAIN, seat_angle_in_deg: 45.000 NOMINAL, body_inside_diameter: 5.062 INCHES NOMINAL IN, body_outside_diameter: 6.357 INCHES MINIMUM AND 6.365 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-013-3388, 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
88426 5IN PIECE
NSN: 4820-01-013-3388
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL UNS J03002 OVERALL
overall_height2.750 INCHES MINIMUM AND 2.765 INCHES MAXIMUM IN
style_designatorPLAIN
seat_angle_in_deg45.000 NOMINAL
body_inside_diameter5.062 INCHES NOMINAL IN
body_outside_diameter6.357 INCHES MINIMUM AND 6.365 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
material_document_and_classificationASTM A216, GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4820-01-013-3388
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 88426 5IN PIECE · 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 OUTSIDE DIAMETER: 6.357 INCHES MINIMUM AND 6.365 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A216, GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 5.062 INCHES NOMINAL IN
•
MATERIAL: STEEL UNS J03002 OVERALL
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.750 INCHES MINIMUM AND 2.765 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER6.357 INCHES MINIMUM AND 6.365 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216, GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER5.062 INCHES NOMINAL IN
MATERIALSTEEL UNS J03002 OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SUBSTITUTES & CROSS-REFERENCES 1
88426Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 88426 5IN PIECE?
88426 5IN PIECE is a SEAT,VALVE.
What parts can replace 88426 5IN PIECE?
There is 1 known substitute for 88426 5IN PIECE: 88426. Substitute compatibility should be verified for your specific system.
What is the NSN for 88426 5IN PIECE?
88426 5IN PIECE is cataloged in the U.S. Government catalog under NSN 4820-01-013-3388. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.