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3W54135 — PARTS KIT,CHECK VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3W54135: PARTS KIT,CHECK VALVE.

The PARTS KIT,CHECK VALVE is a the manufacturer industrial component. Key specifications include supply_items_and_quantities: 78385 2670123 PISTON,VALVE 1,78385 2671435 SEAT ASSEMBLY 1,78385 801-163-010 BACKUP RING 1. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-678-9470, 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
3W54135
NSN: 4820-00-678-9470
FSC: 4820 — Valves, Nonpowered
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
component_quantity3
supply_items_and_quantities78385 2670123 PISTON,VALVE 1,78385 2671435 SEAT ASSEMBLY 1,78385 801-163-010 BACKUP RING 1
NSN4820-00-678-9470
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3W54135 · 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
•
COMPONENT QUANTITY: 3
•
SUPPLY ITEMS AND QUANTITIES: 78385 2670123 PISTON,VALVE 1,78385 2671435 SEAT ASSEMBLY 1,78385 801-163-010 BACKUP RING 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY3
SUPPLY ITEMS AND QUANTITIES78385 2670123 PISTON,VALVE 1,78385 2671435 SEAT ASSEMBLY 1,78385 801-163-010 BACKUP RING 1
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3W54135?
3W54135 is a PARTS KIT,CHECK VALVE.
What is the NSN for 3W54135?
3W54135 is cataloged in the U.S. Government catalog under NSN 4820-00-678-9470. 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.