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Technical Data Sheet
PartsTable / COMPONENT / 845-2181282
845-2181282 ✓ 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 RING,DISK,STEM,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, body_type: SOLID, head_type: SOLID, thread_class: 2A EXTERNAL A, overall_length: 3.625 INCHES NOMINAL IN, drive_end_style: RAISED SQUARE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-061-5106, 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
845-2181282
NSN: 4820-01-061-5106
FSC: 4820
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY
body_typeSOLID
head_typeSOLID
thread_class2A EXTERNAL A
overall_length3.625 INCHES NOMINAL IN
drive_end_styleRAISED SQUARE
inside_diameter2.500 INCHES NOMINAL IN
connection_stylePLAIN
outside_diameter3.622 INCHES NOMINAL IN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size4.000 INCHES EXTERNAL IN
thread_series_designatorNPT EXTERNAL
NSN4820-01-061-5106
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-2181282 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL CROME PLATED,3 IN. SIZE IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL CROME PLATED,3 IN. SIZE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
C600-045-1250Interchangeable
interchangeable cross-reference
interchangeable
845-2181282Interchangeable
interchangeable cross-reference
interchangeable
26M77-100 PC MK73Interchangeable
interchangeable cross-reference
interchangeable
2620-920X12 PIECE 66 3INInterchangeable
interchangeable cross-reference
interchangeable
845-2181282 PIECE 66 3INInterchangeable
interchangeable cross-reference
interchangeable
26M77-100PC104Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-2181282?
845-2181282 is a RING,DISK,STEM,VALVE.
What parts can replace 845-2181282?
There are 31 known substitutes for 845-2181282: C600-045-1250, 845-2181282, 26M77-100 PC MK73 and 28 more. Substitute compatibility should be verified for your specific system.
Is 845-2181282 still available?
845-2181282 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026