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S2003-S — PARTS KIT,CHECK VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

S2003-S: PARTS KIT,CHECK VALVE.

The PARTS KIT,CHECK VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: 1.500 IN. VALVE SWING CHECK IN, supply_items_and_quantities: S90061 CLAPPER 1; 300802 O-RING 1; 300661 SEAL 1.

This part is cataloged in the U.S. Government catalog under NSN 4820-00-034-1761, 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
S2003-S
NSN: 4820-00-034-1761
NIINs: 000341761, 013849183
FSC: 4820 — Valves, Nonpowered
CAGE: 11836 — NATIONAL OILWELL (USA)
SPECIFICATIONS
component_quantity3
end_item_identification1.500 IN. VALVE SWING CHECK IN
supply_items_and_quantitiesS90061 CLAPPER 1; 300802 O-RING 1; 300661 SEAL 1
NSN4820-00-034-1761
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S2003-S · 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: S90061 CLAPPER 1; 300802 O-RING 1; 300661 SEAL 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY3
SUPPLY ITEMS AND QUANTITIESS90061 CLAPPER 1; 300802 O-RING 1; 300661 SEAL 1
END ITEM IDENTIFICATION1.500 IN. VALVE SWING CHECK IN
SUBSTITUTES & CROSS-REFERENCES 1
S90061/300661/300802Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 S2003-S?
S2003-S is a PARTS KIT,CHECK VALVE.
What parts can replace S2003-S?
There is 1 known substitute for S2003-S: S90061/300661/300802. Substitute compatibility should be verified for your specific system.
What is the NSN for S2003-S?
S2003-S is cataloged in the U.S. Government catalog under NSN 4820-00-034-1761. 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.