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40741PC20 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

40741PC20: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, special_features: LEVEL III; USED ON 4820-01-199-7933 AND 4820-0530-5758, end_item_identification: VALVE TD-145 CVN 688, valve_design_control_activity: 55378, valve_size_for_which_designed: 0.250 INCHES IN, material_document_and_classification: MONEL MFR REF SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-545-4109, 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
40741PC20
NSN: 4820-01-545-4109
FSC: 4820 — Valves, Nonpowered
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
special_featuresLEVEL III; USED ON 4820-01-199-7933 AND 4820-0530-5758
end_item_identificationVALVE TD-145 CVN 688
valve_design_control_activity55378
valve_size_for_which_designed0.250 INCHES IN
material_document_and_classificationMONEL MFR REF SINGLE MATERIAL RESPONSE
NSN4820-01-545-4109
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40741PC20 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MONEL MFR REF SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 55378
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMONEL MFR REF SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED0.250 INCHES IN
SPECIAL FEATURESLEVEL III; USED ON 4820-01-199-7933 AND 4820-0530-5758
VALVE DESIGN CONTROL ACTIVITY55378
END ITEM IDENTIFICATIONVALVE TD-145 CVN 688
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 40741PC20?
40741PC20 is a RETAINER,DISK,VALVE.
What is the NSN for 40741PC20?
40741PC20 is cataloged in the U.S. Government catalog under NSN 4820-01-545-4109. 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.