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Technical Data Sheet
PartsTable / COMPONENT / 81551-003/4INCID882057657
81551-003/4INCID882057657 ✓ 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 81551-003/4INCID882057657 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-824-8651, 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
81551-003/4INCID882057657
NSN: 4820-00-824-8651
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number81551-003/4INCID882057657
NSN4820-00-824-8651
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81551-003/4INCID882057657 · 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
•
MEDIA FOR WHICH DESIGNED: STEAM SINGLE RESPONSE
•
OPERATING PRESSURE: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE OPERATION METHOD: MANUAL
•
FLOW CONTROL DEVICE: DISK
•
CONNECTION STYLE: SOCKET ALL ENDS
•
FEATURES PROVIDED: BONNET PACKING
•
MATERIAL: COBALT ALLOY FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESVALVE SIZE 0.750 IN. IN
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE OPERATION METHODMANUAL
FLOW CONTROL DEVICEDISK
CONNECTION STYLESOCKET ALL ENDS
FEATURES PROVIDEDBONNET PACKING
MATERIALCOBALT ALLOY FLOW CONTROL DEVICE
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
W07-3074B-05TS-33311-30 REVJInterchangeable
interchangeable cross-reference
interchangeable
B812-1-B CHG TA-15 B812-1-B3Interchangeable
interchangeable cross-reference
interchangeable
B812-1B3Interchangeable
interchangeable cross-reference
interchangeable
B812-1-B3L1Interchangeable
interchangeable cross-reference
interchangeable
803-5184193-5AInterchangeable
interchangeable cross-reference
interchangeable
807-1700 807-16Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81551-003/4INCID882057657?
81551-003/4INCID882057657 is a 81551-003/4INCID882057657.
What parts can replace 81551-003/4INCID882057657?
There are 13 known substitutes for 81551-003/4INCID882057657: W07-3074B-05TS-33311-30 REVJ, B812-1-B CHG TA-15 B812-1-B3, B812-1B3 and 10 more. Substitute compatibility should be verified for your specific system.
Is 81551-003/4INCID882057657 still available?
81551-003/4INCID882057657 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026