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Technical Data Sheet
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40397-405 — 40397-405

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

40397-405: 40397-405.

The 40397-405 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-455-5041, 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
40397-405
NSN: 4820-01-455-5041
FSC: 4820 — Valves, Nonpowered
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
Part Number40397-405
NSN4820-01-455-5041
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40397-405 · 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
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SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
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BODY STYLE: STRAIGHT THRU
•
FACE TO FACE DISTANCE: 9.250 INCHES NOMINAL IN
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REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: REDUCED SOCKET WITH ONE BRAZING RING
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
FACE TO FACE DISTANCE9.250 INCHES NOMINAL IN
REGULATION TYPEAUTOMATIC SINGLE STAGE
FIRST END STYLE DESIGNATORREDUCED SOCKET WITH ONE 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
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
SUBSTITUTES & CROSS-REFERENCES 1
40397-4Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 40397-405?
40397-405 is a 40397-405.
What parts can replace 40397-405?
There is 1 known substitute for 40397-405: 40397-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 40397-405?
40397-405 is cataloged in the U.S. Government catalog under NSN 4820-01-455-5041. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.