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PartsTable / COMPONENT / 51670 ITEM 2
51670 ITEM 2 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, body_style: RIVET MOUNTED, bore_style: PLAIN BOTH ENDS, head_style: HEXAGON, tooth_form: STANDARD, body_length: 1.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-287-4877, 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
51670 ITEM 2
NSN: 4820-01-287-4877
FSC: 4820
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
body_styleRIVET MOUNTED
bore_stylePLAIN BOTH ENDS
head_styleHEXAGON
tooth_formSTANDARD
body_length1.500 INCHES NOMINAL IN
bonnet_typeOUTSIDE SCREW-YOKE
thread_class3A ALL ENDS A
pitch_diameter1.0833 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity52
connection_typeTHREADED CARTRIDGE ALL ENDS
NSN4820-01-287-4877
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 51670 ITEM 2 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
33554Interchangeable
interchangeable cross-reference
interchangeable
K5121344Interchangeable
interchangeable cross-reference
interchangeable
PC5121344Interchangeable
interchangeable cross-reference
interchangeable
51670Interchangeable
interchangeable cross-reference
interchangeable
J221P115Interchangeable
interchangeable cross-reference
interchangeable
SS845-1889836PIInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51670 ITEM 2?
51670 ITEM 2 is a SEAT,VALVE.
What parts can replace 51670 ITEM 2?
There are 17 known substitutes for 51670 ITEM 2: 33554, K5121344, PC5121344 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51670 ITEM 2?
51670 ITEM 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-287-4877. 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