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40397-904 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

40397-904: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: NICKEL ALLOY AND COPPER ALLOY SEAT, body_style: STRAIGHT THRU, regulation_type: AUTOMATIC SINGLE STAGE, special_features: SPRING AND GROOVED TAILPIECE REQUIRED FOR THIS ITEM, flow_control_device: DISK. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-467-6807, 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
40397-904
NSN: 4820-01-467-6807
FSC: 4820 — Valves, Nonpowered
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialNICKEL ALLOY AND COPPER ALLOY SEAT
body_styleSTRAIGHT THRU
regulation_typeAUTOMATIC SINGLE STAGE
special_featuresSPRING AND GROOVED TAILPIECE REQUIRED FOR THIS ITEM
flow_control_deviceDISK
valve_loading_methodSPRING
outlet_pressure_range50.0 TO 150.0 CAMERA MOUNT
end_connection_quantity2
end_item_identificationW/S CODE ARLEIGH BURKE CLASS DDG
media_for_which_designedWATER, SALT
first_end_connection_typeUNTHREADED INTERNAL PIPE
NSN4820-01-467-6807
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40397-904 · 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: DISK
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: SOCKET W/BRAZING RING
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPEAUTOMATIC SINGLE STAGE
FIRST END STYLE DESIGNATORSOCKET W/BRAZING RING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
END CONNECTION QUANTITY2
OUTLET PRESSURE RANGE50.0 TO 150.0 CAMERA MOUNT
VALVE LOADING METHODSPRING
SUBSTITUTES & CROSS-REFERENCES 2
40397-9 ASSY 40397-904Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
40397-9Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40397-904?
40397-904 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 40397-904?
There are 2 known substitutes for 40397-904: 40397-9 ASSY 40397-904, 40397-9. Substitute compatibility should be verified for your specific system.
What is the NSN for 40397-904?
40397-904 is cataloged in the U.S. Government catalog under NSN 4820-01-467-6807. This indicates validated use in U.S. government and defense supply chains.
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