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7878 ITEM 5-2IN — 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 STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, stem_actuating_end_type: THREADED EXTERNALLY, valve_size_for_which_designed: 2.000 INCHES IN, valve_type_for_which_designed: GATE, material_document_and_classification: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-178-3090, 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
7878 ITEM 5-2IN
NSN: 4820-01-178-3090
FSC: 4820
CAGE: 79342 — WILLIAM E WILLIAMS VALVE CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
stem_actuating_end_typeTHREADED EXTERNALLY
valve_size_for_which_designed2.000 INCHES IN
valve_type_for_which_designedGATE
material_document_and_classificationASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
NSN4820-01-178-3090
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 7878 ITEM 5-2IN · 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
•
MATERIAL: STEEL CORROSION RESISTING
•
VALVE TYPE FOR WHICH DESIGNED: GATE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
•
VALVE SIZE FOR WHICH DESIGNED: 2.000 INCHES IN
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
TECHNICAL CHARACTERISTICS
MATERIALSTEEL CORROSION RESISTING
VALVE TYPE FOR WHICH DESIGNEDGATE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
VALVE SIZE FOR WHICH DESIGNED2.000 INCHES IN
STEM ACTUATING END TYPETHREADED EXTERNALLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
A3692InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
33G1714InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS35489-16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
82514S4105-69217H75EEF10794InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
82514S4105-692177PC2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
72030PC2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7878 ITEM 5-2IN?
7878 ITEM 5-2IN is a STEM,FLUID VALVE.
What parts can replace 7878 ITEM 5-2IN?
There are 16 known substitutes for 7878 ITEM 5-2IN: A3692, 33G1714, MS35489-16 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7878 ITEM 5-2IN?
7878 ITEM 5-2IN is cataloged in the Federal Logistics Information System under NSN 4820-01-178-3090. 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