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31-09317 — Technical Data Sheet

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— · 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: 0.875 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.320 INCHES NOMINAL IN, body_inside_diameter: 0.344 INCHES NOMINAL IN, body_outside_diameter: 0.525 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-144-3263, 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
31-09317
NSN: 4820-01-144-3263
FSC: 4820
CAGE: 29731 — GARDNER DENVER WATER JETTING SYSTEMS, INC. DIV ENGINEERED PACKAGE GROUP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter0.875 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.320 INCHES NOMINAL IN
body_inside_diameter0.344 INCHES NOMINAL IN
body_outside_diameter0.525 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.361 INCHES NOMINAL IN
NSN4820-01-144-3263
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 31-09317 · 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: 0.344 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY OUTSIDE DIAMETER: 0.525 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
FLANGE SEAT TO DISK END HEIGHT: 0.361 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.320 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BODY INSIDE DIAMETER0.344 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY OUTSIDE DIAMETER0.525 INCHES NOMINAL IN
SEATING SURFACE SHAPEFLAT
MATERIALSTEEL CORROSION RESISTING OVERALL
FLANGE SEAT TO DISK END HEIGHT0.361 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.320 INCHES NOMINAL IN
FLANGE DIAMETER0.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
922927InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50643InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B50643InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-09317?
31-09317 is a SEAT,VALVE.
What parts can replace 31-09317?
There are 3 known substitutes for 31-09317: 922927, 50643, B50643. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-09317?
31-09317 is cataloged in the Federal Logistics Information System under NSN 4820-01-144-3263. 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: September 2026