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845-2445066 ITEM 83 — Technical Data Sheet

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— · 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 ADAPTER,SPLINED,GLOBE VALVE 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 under NSN 4820-01-121-2903, 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
845-2445066 ITEM 83
NSN: 4820-01-121-2903
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number845-2445066 ITEM 83
NSN4820-01-121-2903
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-2445066 ITEM 83 · 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;O/A LG 1.562 IN.;MAJOR DIA 1.977 IN. NOMINAL;MINOR DIA 1.721 IN. NOMINAL;8/16 PITCH-15 TOOTH FLAT ROOT SIDE FIT SPLINES;30 DEG CHAMFER BOTH ENDS TO MINOR DIA;ID 0.881 IN.;TWO KEYWAYS 180 DEG APART,0.90 IN. WIDE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL;O/A LG 1.562 IN.;MAJOR DIA 1.977 IN. NOMINAL;MINOR DIA 1.721 IN. NOMINAL;8/16 PITCH-15 TOOTH FLAT ROOT SIDE FIT SPLINES;30 DEG CHAMFER BOTH ENDS TO MINOR DIA;ID 0.881 IN.;TWO KEYWAYS 180 DEG APART,0.90 IN. WIDE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
2620-920X12ASSY11APC4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2181282-3INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2445066 ITEM 19InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2181282 PIECE 28 3 IN.InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1/2 CHRG50InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1/2 INCH 52100 GRADE 50InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-2445066 ITEM 83?
845-2445066 ITEM 83 is a ADAPTER,SPLINED,GLOBE VALVE.
What parts can replace 845-2445066 ITEM 83?
There are 29 known substitutes for 845-2445066 ITEM 83: 2620-920X12ASSY11APC4, 845-2181282-3IN, 845-2445066 ITEM 19 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-2445066 ITEM 83?
845-2445066 ITEM 83 is cataloged in the Federal Logistics Information System under NSN 4820-01-121-2903. 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: September 2026