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G53-135 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

G53-135: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, style_designator: PLAIN THREADED, fsc_application_data: STEAM POWERED FIRE AND BILGEPUMP, seating_surface_shape: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-126-3103, 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
G53-135
NSN: 4810-00-126-3103
FSC: 4810 — Valves, Powered
CAGE: 16062 — M.T. DAVIDSON COMPANY (USA)
SPECIFICATIONS
materialCOPPER OVERALL
style_designatorPLAIN THREADED
fsc_application_dataSTEAM POWERED FIRE AND BILGEPUMP
seating_surface_shapeFLAT
NSN4810-00-126-3103
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: G53-135 · 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
•
FSC APPLICATION DATA: STEAM POWERED FIRE AND BILGEPUMP
•
STYLE DESIGNATOR: PLAIN THREADED
•
MATERIAL: COPPER OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATASTEAM POWERED FIRE AND BILGEPUMP
STYLE DESIGNATORPLAIN THREADED
MATERIALCOPPER OVERALL
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 2
G54Reference document
Same NSN cross-reference
Reference document — Secondary reference
53Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is G53-135?
G53-135 is a SEAT,VALVE.
What parts can replace G53-135?
There are 2 known substitutes for G53-135: G54, 53. Substitute compatibility should be verified for your specific system.
What is the NSN for G53-135?
G53-135 is cataloged in the U.S. Government catalog under NSN 4810-00-126-3103. 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.