PartsTable
Technical Data Sheet
30579 ✓ Verified by PartsTable
Freecom · 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

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Keep it Simple This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-329-0861, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
30579
NSN: 4820-00-329-0861
FSC: 4820
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
materialGLASS ENCLOSURE
thread_class2A SINGLE THREADED PORTION A
thread_length0.187 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_length0.205 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.100 INCHES MINIMUM IN
overall_diameter0.107 INCHES MAXIMUM IN
special_featuresWEAPONSYSTEM ESSENTIAL.
features_providedHERMETICALLY SEALED CASE
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.687 INCHES SINGLE THREADED PORTION IN
seating_surface_shapeFLAT
NSN4820-00-329-0861
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 30579 · Freecom ⚠ 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: ALUMINUM ALLOY 2024 OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
THREAD SERIES DESIGNATOR: UNEF SINGLE THREADED PORTION
SEATING SURFACE SHAPE: FLAT
THREAD CLASS: 2A SINGLE THREADED PORTION A
SEAL ACCOMMODATION TYPE: GROOVED
NOMINAL THREAD SIZE: 0.687 INCHES SINGLE THREADED PORTION IN
THREAD LENGTH: 0.187 INCHES NOMINAL SINGLE THREADED PORTION IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY 2024 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
THREAD CLASS2A SINGLE THREADED PORTION A
SEAL ACCOMMODATION TYPEGROOVED
NOMINAL THREAD SIZE0.687 INCHES SINGLE THREADED PORTION IN
THREAD LENGTH0.187 INCHES NOMINAL SINGLE THREADED PORTION IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
1N4004AInterchangeable
interchangeable cross-reference
interchangeable
1N4004Interchangeable
interchangeable cross-reference
interchangeable
30579Interchangeable
interchangeable cross-reference
interchangeable
41983 FIND #35Interchangeable
interchangeable cross-reference
interchangeable
41983Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30579?
30579 is a SEMICONDUCTOR DEVICE,DIODE manufactured by Freecom.
What parts can replace 30579?
There are 5 known substitutes for 30579: 1N4004A, 1N4004, 30579 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30579?
30579 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-329-0861. This indicates validated use in U.S. government and defense supply chains.
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