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PartsTable / COMPONENT / NAP584 PIECE 21
NAP584 PIECE 21 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The STANCHION,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRONZE;4.625 IN. OD IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-154-6442, 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
NAP584 PIECE 21
NSN: 4820-01-154-6442
FSC: 4820
CAGE: 70667 — ATLAS VALVE CO (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRONZE;4.625 IN. OD IN
NSN4820-01-154-6442
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NAP584 PIECE 21 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRONZE;4.625 IN. OD IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRONZE;4.625 IN. OD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
NAP584 PIECE 17Interchangeable
interchangeable cross-reference
interchangeable
NAP584Interchangeable
interchangeable cross-reference
interchangeable
P1832AInterchangeable
interchangeable cross-reference
interchangeable
P2365AInterchangeable
interchangeable cross-reference
interchangeable
NAP584 PIECE 27Interchangeable
interchangeable cross-reference
interchangeable
P2155AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAP584 PIECE 21?
NAP584 PIECE 21 is a STANCHION,VALVE.
What parts can replace NAP584 PIECE 21?
There are 10 known substitutes for NAP584 PIECE 21: NAP584 PIECE 17, NAP584, P1832A and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAP584 PIECE 21?
NAP584 PIECE 21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-154-6442. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026