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Technical Data Sheet
51-4141 ✓ 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

The PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 0.438 INCHES NOMINAL IN, vent_hole_shape: ROUND, end_connection_type: THREADED, refinement_medium_type: FILTERING, end_item_identification: NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-171-1071, 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
51-4141
NSN: 5340-01-171-1071
FSC: 5340
CAGE: 04664 — PIERCE MANUFACTURING INC (USA)
SPECIFICATIONS
length0.438 INCHES NOMINAL IN
vent_hole_shapeROUND
vent_hole_quantity1
end_connection_typeTHREADED
refinement_medium_typeFILTERING
end_item_identificationNSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK)
NSN5340-01-171-1071
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51-4141 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
VENT HOLE QUANTITY: 1
VENT HOLE SHAPE: ROUND
END CONNECTION TYPE: THREADED
REFINEMENT MEDIUM TYPE: FILTERING
LENGTH: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
VENT HOLE QUANTITY1
VENT HOLE SHAPEROUND
END CONNECTION TYPETHREADED
REFINEMENT MEDIUM TYPEFILTERING
END ITEM IDENTIFICATIONNSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK)
LENGTH0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
12Z24PC421Upgraded Successor
successor cross-reference
successor
F18Upgraded Successor
successor cross-reference
successor
MX-243766 PIECE 23Upgraded Successor
successor cross-reference
successor
S11FTInterchangeable
interchangeable cross-reference
interchangeable
B107.1 CL3Interchangeable
interchangeable cross-reference
interchangeable
AS954Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51-4141?
51-4141 is a PLUG,VENT.
What parts can replace 51-4141?
There are 17 known substitutes for 51-4141: 12Z24PC421, F18, MX-243766 PIECE 23 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51-4141?
51-4141 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-171-1071. This indicates validated use in U.S. government and defense supply chains.
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