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1128SCH403-3 — TRANSFORMER,RADIO FREQUENCY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1128SCH403-3: TRANSFORMER,RADIO FREQUENCY.

The TRANSFORMER,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY FLOW CONTROL DEVICE, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL BOSS FIRST END, connection_style: GASKET SEAL(BOSS) FIRST END, style_designator: STRAIGHT THRU W/BAFFLE, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-169-0654, 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
1128SCH403-3
NSN: 4820-00-169-0654
FSC: 4820 — Valves, Nonpowered
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY FLOW CONTROL DEVICE
thread_class3B FIRST END
connection_typeTHREADED INTERNAL BOSS FIRST END
connection_styleGASKET SEAL(BOSS) FIRST END
style_designatorSTRAIGHT THRU W/BAFFLE
thread_directionRIGHT-HAND FIRST END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.437 INCHES FIRST END IN
maximum_operating_temp275.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-00-169-0654
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1128SCH403-3 · 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
•
FLOW CONTROL DEVICE: POPPET
•
CONNECTION STYLE: GASKET SEAL(BOSS) FIRST END
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
STYLE DESIGNATOR: STRAIGHT THRU W/BAFFLE
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.437 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.437 INCHES FIRST END IN
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SINGLE RESPONSE DEGF
DISK LOADING METHODSPRING
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 1128SCH403-3?
1128SCH403-3 is a TRANSFORMER,RADIO FREQUENCY.
What is the NSN for 1128SCH403-3?
1128SCH403-3 is cataloged in the U.S. Government catalog under NSN 4820-00-169-0654. This indicates validated use in U.S. government and defense supply chains.
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