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1W139311 — PARTS KIT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1W139311: PARTS KIT,VALVE.

The PARTS KIT,VALVE is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: SEAT PLATE 2; REED PLATE 2; LOCK RING 2. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-128-1918, 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
1W139311
NSN: 4820-01-128-1918
FSC: 4820 — Valves, Nonpowered
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
component_quantity6
nonsupply_items_and_quantitiesSEAT PLATE 2; REED PLATE 2; LOCK RING 2
NSN4820-01-128-1918
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1W139311 · 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: 6
•
NONSUPPLY ITEMS AND QUANTITIES: SEAT PLATE 2; REED PLATE 2; LOCK RING 2
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY6
NONSUPPLY ITEMS AND QUANTITIESSEAT PLATE 2; REED PLATE 2; LOCK RING 2
SUBSTITUTES & CROSS-REFERENCES 3
MLH49901G1Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
MLH49901G1 PIECE 6Reference document
Same NSN cross-reference
Reference document — Secondary reference
34265090Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1W139311?
1W139311 is a PARTS KIT,VALVE.
What parts can replace 1W139311?
There are 3 known substitutes for 1W139311: MLH49901G1, MLH49901G1 PIECE 6, 34265090. Substitute compatibility should be verified for your specific system.
What is the NSN for 1W139311?
1W139311 is cataloged in the U.S. Government catalog under NSN 4820-01-128-1918. This indicates validated use in U.S. government and defense supply chains.
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