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3144337 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3144337: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_diameter: 0.800 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN, hardness_rating: 53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM OVERALL, special_features: W/4 HOLES THRU FLANGE, style_designator: PLAIN FLANGED, under_flange_height: 0.470 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-905-3101, 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
3144337
NSN: 4810-00-905-3101
FSC: 4810 — Valves, Powered
CAGE: 60225 — L3 TECHNOLOGIES, INC. DIV OCEAN SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_diameter0.800 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN
hardness_rating53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM OVERALL
special_featuresW/4 HOLES THRU FLANGE
style_designatorPLAIN FLANGED
under_flange_height0.470 INCHES NOMINAL IN
body_inside_diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
fsc_application_dataCONTROL ASSEMBLY,SONAR SET
body_outside_diameter0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
NSN4810-00-905-3101
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3144337 · 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 SEAT TO DISK END HEIGHT: 0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
•
FLANGE DIAMETER: 0.800 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN
•
FSC APPLICATION DATA: CONTROL ASSEMBLY,SONAR SET
•
BODY OUTSIDE DIAMETER: 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
•
HARDNESS RATING: 53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
FLANGE DIAMETER0.800 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN
FSC APPLICATION DATACONTROL ASSEMBLY,SONAR SET
BODY OUTSIDE DIAMETER0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
HARDNESS RATING53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SPECIAL FEATURESW/4 HOLES THRU FLANGE
UNDER FLANGE HEIGHT0.470 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 3144337?
3144337 is a SEAT,VALVE.
What is the NSN for 3144337?
3144337 is cataloged in the U.S. Government catalog under NSN 4810-00-905-3101. 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.