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PartsTable / COMPONENT / 504 1/2
504 1/2 ✓ 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 504 1/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-657-8075, 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
504 1/2
NSN: 4820-01-657-8075
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number504 1/2
NSN4820-01-657-8075
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 504 1/2 · 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: BRONZE BODY
•
VALVE OPERATION METHOD: MANUAL
•
VALVE SIZE: 0.50 INCHES IN
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
BONNET ATTACHMENT METHOD: THREADED
•
FLOW CONTROL DEVICE: DISK
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALBRONZE BODY
VALVE OPERATION METHODMANUAL
MATERIALBRONZE STEM
VALVE SIZE0.50 INCHES IN
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
BONNET ATTACHMENT METHODTHREADED
FLOW CONTROL DEVICEDISK
BONNET TYPEINSIDE SCREW
MATERIALGRAPHITE PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
504 1-2Interchangeable
interchangeable cross-reference
interchangeable
5042Interchangeable
interchangeable cross-reference
interchangeable
4F6888Interchangeable
interchangeable cross-reference
interchangeable
12Z330PC30Interchangeable
interchangeable cross-reference
interchangeable
B3-4Interchangeable
interchangeable cross-reference
interchangeable
12NBK1830YP2CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 504 1/2?
504 1/2 is a 504 1/2.
What parts can replace 504 1/2?
There are 15 known substitutes for 504 1/2: 504 1-2, 5042, 4F6888 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 504 1/2?
504 1/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-657-8075. 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