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Technical Data Sheet
MS212-5-3 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

TERMINAL JUNCTION BLOCK,SECTIONA. Key specifications include material: PLASTIC BOARD, body_style: BARRIER TYPE, end_radius: 0.438 INCHES NOMINAL IN, fork_depth: 1.188 INCHES NOMINAL IN, shank_length: 0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, thread_class: 3A ROD CONNECTION A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-068-2016, 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
MS212-5-3
NSN: 5340-00-068-2016
FSC: 5340
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC BOARD
body_styleBARRIER TYPE
end_radius0.438 INCHES NOMINAL IN
fork_depth1.188 INCHES NOMINAL IN
shank_length0.745 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_class3A ROD CONNECTION A
overall_width0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
thread_length0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM ROD CONNECTION IN
base_thickness0.455 INCHES IN
shank_diameter0.189 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
fork_span_width0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
terminal_designNONFEEDTHRU
NSN5340-00-068-2016
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS212-5-3 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
SHANK DIAMETER: 0.189 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
THREAD LENGTH: 0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM ROD CONNECTION IN
STYLE DESIGNATOR: CLEVIS
THREAD DIRECTION: RIGHT-HAND ROD CONNECTION
END RADIUS: 0.438 INCHES NOMINAL IN
SURFACE TREATMENT: CADMIUM OVERALL
FORK ARM THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SHANK DIAMETER0.189 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN
THREAD LENGTH0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM ROD CONNECTION IN
STYLE DESIGNATORCLEVIS
OVERALL WIDTH0.745 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND ROD CONNECTION
END RADIUS0.438 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
FORK ARM THICKNESS0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF ROD CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MS21251B3SUpgraded Successor
successor cross-reference
successor
2810689Upgraded Successor
successor cross-reference
successor
AN165-16RSUpgraded Successor
successor cross-reference
successor
MIL-DTL-8878Upgraded Successor
successor cross-reference
successor
MS21254-3RSUpgraded Successor
successor cross-reference
successor
SV809020 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS212-5-3?
MS212-5-3 is a TERMINAL JUNCTION BLOCK,SECTIONA.
What parts can replace MS212-5-3?
There are 9 known substitutes for MS212-5-3: MS21251B3S, 2810689, AN165-16RS and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS212-5-3?
MS212-5-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-068-2016. This indicates validated use in U.S. government and defense supply chains.
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