PartsTable
Technical Data Sheet
3057-8 ✓ Verified by PartsTable
Freecom · MRO · MRO_GENERAL
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 4820-00-329-0830, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 3057-8
NSN: 4820-00-329-0830
FSC: 4820
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
materialSTEEL
switch_typeROTARY
overall_depth2.288 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height1.875 INCHES NOMINAL IN
overall_length4.910 INCHES NOMINAL IN
mounting_methodBRACKET(S)
controlling_agencyTHE DIGITRAN CO
identifying_number300 TYPE NO.
inclosure_materialPLASTIC POLYSULFONE
mounting_configurationFOUR 0.140 IN. DIA MTG HOLES ON 1.565 IN. BY 4.580 IN. MTG CENTERS IN
end_item_identification16309753077
NSN4820-00-329-0830
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 3057-8 · 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: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
END ITEM IDENTIFICATIONVALVE PART NO. 46680-105/107
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
305-78Interchangeable
interchangeable cross-reference
interchangeable
357-8Interchangeable
interchangeable cross-reference
interchangeable
GS839AR3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3057-8?
3057-8 is a SWITCH ASSEMBLY manufactured by Freecom. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3057-8?
There are 3 known substitutes for 3057-8: 305-78, 357-8, GS839AR3. Substitute compatibility should be verified for your specific system.
What is the NSN for 3057-8?
3057-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-329-0830. This indicates validated use in U.S. government and defense supply chains.
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