PartsTable
Technical Data Sheet
Download PDF

NK4379-1 — RING,VALVE PISTON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NK4379-1: RING,VALVE PISTON.

The RING,VALVE PISTON is a the manufacturer industrial component. Key specifications include material: IRON, end_item_identification: WEAPON SYSTEM E/I SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-429-8364, 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
NK4379-1
NSN: 4820-01-429-8364
FSC: 4820 — Valves, Nonpowered
CAGE: 66200 — PIONEER INDUSTRIES, LLC (USA)
SPECIFICATIONS
materialIRON
end_item_identificationWEAPON SYSTEM E/I SEAWOLF CLASS SSN
NSN4820-01-429-8364
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NK4379-1 · 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
•
MATERIAL: IRON
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONWEAPON SYSTEM E/I SEAWOLF CLASS SSN
MATERIALIRON
SUBSTITUTES & CROSS-REFERENCES 2
S1134PC18Reference document
Same NSN cross-reference
Reference document — Secondary reference
S1134Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy NK4379-1?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is NK4379-1?
NK4379-1 is a RING,VALVE PISTON.
What parts can replace NK4379-1?
There are 2 known substitutes for NK4379-1: S1134PC18, S1134. Substitute compatibility should be verified for your specific system.
What is the NSN for NK4379-1?
NK4379-1 is cataloged in the U.S. Government catalog under NSN 4820-01-429-8364. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — NK4379-1

✓ 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.