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R-495 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The COVER,HYDRAULIC,PUMP-MOTOR is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY BODY, overall_length: 0.750 INCHES NOMINAL IN, mounting_method: HOLE/SLOT, special_features: 3/8-16 HEX HD BOLT, end_item_identification: WARREN PUMP TYPE 3-TO-6, material_document_and_classification: MIL-N-20164 MIL SPEC SINGLE MATERIAL RESPONSE BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-0442, 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
R-495
NSN: 4820-01-145-0442
FSC: 4820
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY BODY
overall_length0.750 INCHES NOMINAL IN
mounting_methodHOLE/SLOT
special_features3/8-16 HEX HD BOLT
end_item_identificationWARREN PUMP TYPE 3-TO-6
material_document_and_classificationMIL-N-20164 MIL SPEC SINGLE MATERIAL RESPONSE BODY
NSN4820-01-145-0442
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: R-495 · 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: MIL-N-20164 MIL SPEC SINGLE MATERIAL RESPONSE BODY
•
MATERIAL: NICKEL ALLOY BODY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-20164 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
118584Interchangeable
interchangeable cross-reference
interchangeable
AC1Interchangeable
interchangeable cross-reference
interchangeable
G10DInterchangeable
interchangeable cross-reference
interchangeable
AC10DPSInterchangeable
interchangeable cross-reference
interchangeable
1510-0007Interchangeable
interchangeable cross-reference
interchangeable
400094-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R-495?
R-495 is a COVER,HYDRAULIC,PUMP-MOTOR.
What parts can replace R-495?
There are 15 known substitutes for R-495: 118584, AC1, G10D and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R-495?
R-495 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-0442. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026