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1063N4IN PC 4 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1063N4IN PC 4: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, end_item_identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS, valve_design_control_activity: 76364, valve_size_for_which_designed: 4.000 INCHES IN, material_document_and_classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-433-4449, 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
1063N4IN PC 4
NSN: 4820-01-433-4449
FSC: 4820 — Valves, Nonpowered
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
valve_design_control_activity76364
valve_size_for_which_designed4.000 INCHES IN
material_document_and_classificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE
NSN4820-01-433-4449
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1063N4IN PC 4 · 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: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 4.000 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 76364
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED4.000 INCHES IN
VALVE DESIGN CONTROL ACTIVITY76364
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
MATERIALNICKEL ALLOY
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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 1063N4IN PC 4?
1063N4IN PC 4 is a RETAINER,DISK,VALVE.
What is the NSN for 1063N4IN PC 4?
1063N4IN PC 4 is cataloged in the U.S. Government catalog under NSN 4820-01-433-4449. 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.