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845-6556171ITEM11 — GUIDE,VALVE STEM

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

845-6556171ITEM11: GUIDE,VALVE STEM.

The GUIDE,VALVE STEM is a the manufacturer industrial component. Key specifications include end_item_identification: 1/2 IN. RELIEF VALVE IN.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-348-4546, 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
845-6556171ITEM11
NSN: 4820-01-348-4546
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identification1/2 IN. RELIEF VALVE IN
NSN4820-01-348-4546
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-6556171ITEM11 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION1/2 IN. RELIEF VALVE IN
SUBSTITUTES & CROSS-REFERENCES 2
845-6556172ITEM11Reference document
Same NSN cross-reference
Reference document — Secondary reference
845-6556183-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 845-6556171ITEM11?
845-6556171ITEM11 is a GUIDE,VALVE STEM.
What parts can replace 845-6556171ITEM11?
There are 2 known substitutes for 845-6556171ITEM11: 845-6556172ITEM11, 845-6556183-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-6556171ITEM11?
845-6556171ITEM11 is cataloged in the U.S. Government catalog under NSN 4820-01-348-4546. 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.