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PartsTable / COMPONENT / R4001/2IN
R4001/2IN ✓ 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 R4001/2IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-605-0723, 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
R4001/2IN
NSN: 4820-00-605-0723
FSC: 4820
CAGE: 77844 — ROBERT MANUFACTURING COMPANY INC (USA)
SPECIFICATIONS
Part NumberR4001/2IN
NSN4820-00-605-0723
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: R4001/2IN · 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
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: ANGLE
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
BONNET TYPE: PACKING RETAINING
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
FLOW CONTROL DEVICE: DISK
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
STYLE DESIGNATORANGLE
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
BONNET TYPEPACKING RETAINING
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC
FLOW CONTROL DEVICEDISK
THREAD DIRECTIONRIGHT-HAND ALL ENDS
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2102Interchangeable
interchangeable cross-reference
interchangeable
40015Interchangeable
interchangeable cross-reference
interchangeable
918253R91Interchangeable
interchangeable cross-reference
interchangeable
MF32965AInterchangeable
interchangeable cross-reference
interchangeable
FPHM903249Interchangeable
interchangeable cross-reference
interchangeable
5325PL0822355Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R4001/2IN?
R4001/2IN is a R4001/2IN.
What parts can replace R4001/2IN?
There are 13 known substitutes for R4001/2IN: 2102, 40015, 918253R91 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R4001/2IN?
R4001/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-605-0723. 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