PartsTable
Technical Data Sheet
PartsTable / MRO / 43X
43X ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: PLASTIC, inclosure_type: ENCAPSULATED, length_under_shoulder: 0.625 INCHES NOMINAL IN, open_end_inside_diameter: 2.628 INCHES NOMINAL IN, closed_end_overall_diameter: 2.555 INCHES NOMINAL IN, criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-421-7836, 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
MRO→ MRO_GENERAL→ 43X
NSN: 5340-00-421-7836
FSC: 5340
CAGE: 99017 — CAPLUGS LLC DBA MOKON DIV CAPLUGS (USA)
SPECIFICATIONS
materialPLASTIC
inclosure_typeENCAPSULATED
length_under_shoulder0.625 INCHES NOMINAL IN
open_end_inside_diameter2.628 INCHES NOMINAL IN
closed_end_overall_diameter2.555 INCHES NOMINAL IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
NSN5340-00-421-7836
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 43X 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
•
MATERIAL: PLASTIC
•
LENGTH UNDER SHOULDER: 0.625 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
•
CLOSED END OVERALL DIAMETER: 2.555 INCHES NOMINAL IN
•
OPEN END INSIDE DIAMETER: 2.628 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC
LENGTH UNDER SHOULDER0.625 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
CLOSED END OVERALL DIAMETER2.555 INCHES NOMINAL IN
OPEN END INSIDE DIAMETER2.628 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
247E127PC81Upgraded Successor
successor cross-reference
successor
T-43XUpgraded Successor
successor cross-reference
successor
43XUpgraded Successor
successor cross-reference
successor
29-565Interchangeable
interchangeable cross-reference
interchangeable
SMC850474-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43X?
43X is a RESISTOR,FIXED,WIRE WOUND,INDUCT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 43X?
There are 5 known substitutes for 43X: 247E127PC81, T-43X, 43X and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43X?
43X is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-421-7836. 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: July 2026