PartsTable
Technical Data Sheet

1146-025-1/2IN — VALVE,GATE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1146-025-1/2IN: VALVE,GATE.

The VALVE,GATE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, stem_type: NONRISING, valve_size: 0.500 INCHES IN, bonnet_type: PACKING RETAINING, connection_type: SOCKET, WELD, PIPE, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-357-6057, 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
1146-025-1/2IN
NSN: 4820-01-357-6057
NIINs: 013576057, 014555549
FSC: 4820 — Valves, Nonpowered
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
stem_typeNONRISING
valve_size0.500 INCHES IN
bonnet_typePACKING RETAINING
connection_typeSOCKET, WELD, PIPE
valve_operation_methodMANUAL
operating_pressure_and_type400.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
inlet_relationship_with_outletIDENTICAL
nominal_pipe_size_accommodated0.500 INCHES IN
maximum_operating_temp_and_media_for_which_designed150.0 FAHRENHEIT WATER, FRESH DEGF
NSN4820-01-357-6057
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1146-025-1/2IN · 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
•
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES IN
•
CONNECTION TYPE: BRAZING, PIPE
•
VALVE SIZE: 0.500 INCHES IN
•
BONNET TYPE: INSIDE SCREW
•
BONNET ATTACHMENT METHOD: UNION
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
INLET RELATIONSHIP WITH OUTLETIDENTICAL
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES IN
CONNECTION TYPEBRAZING, PIPE
VALVE SIZE0.500 INCHES IN
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODUNION
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1146-025-1/2IN?
1146-025-1/2IN is a VALVE,GATE.
What is the NSN for 1146-025-1/2IN?
1146-025-1/2IN is cataloged in the U.S. Government catalog under NSN 4820-01-357-6057. 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.