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P10543 ✓ 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 INSULATION SLEEVING,ELECTRICAL is a the manufacturer industrial component. Key specifications include color: WHITE, material: PLASTIC POLYVINYL CHLORIDE (PVC), drive_type: HEX SOCKET OR SCREW SLOT OR SERRATED OR SQUARE HEAD, design_type: THREADED, flexibility: FLEXIBLE, temp_rating: -10.0 CELSIUS AND 105.0 CELSIUS DEGC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-804-1253, 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
P10543
NSN: 5340-00-804-1253
FSC: 5340
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
colorWHITE
materialPLASTIC POLYVINYL CHLORIDE (PVC)
drive_typeHEX SOCKET OR SCREW SLOT OR SERRATED OR SQUARE HEAD
design_typeTHREADED
flexibilityFLEXIBLE
temp_rating-10.0 CELSIUS AND 105.0 CELSIUS DEGC
wall_thickness0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
inside_diameter0.204 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
overall_diameter2.063 INCHES NOMINAL IN
style_designatorNONSHRINKABLE
reliability_indicatorNOT ESTABLISHED
environmental_protectionHEAT RESISTANT
NSN5340-00-804-1253
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P10543 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
•
DESIGN TYPE: THREADED
•
DRIVE TYPE: HEX SOCKET OR SCREW SLOT OR SERRATED OR SQUARE HEAD
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-5/16-12 UN
•
OVERALL DIAMETER: 2.063 INCHES NOMINAL IN
•
MATERIAL: PLASTIC, POLYETHYLENE (PP)
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-390, TYPE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A CLASS AND 16 SIZE
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPETHREADED
DRIVE TYPEHEX SOCKET OR SCREW SLOT OR SERRATED OR SQUARE HEAD
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-5/16-12 UN
OVERALL DIAMETER2.063 INCHES NOMINAL IN
MATERIALPLASTIC, POLYETHYLENE (PP)
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-390, TYPE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A CLASS AND 16 SIZE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
M5501/1-R6Upgraded Successor
successor cross-reference
successor
MILC5501Upgraded Successor
successor cross-reference
successor
MIL-C-5501/1Upgraded Successor
successor cross-reference
successor
M5501/1-R8Upgraded Successor
successor cross-reference
successor
PD60Upgraded Successor
successor cross-reference
successor
25726009-04Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P10543?
P10543 is a INSULATION SLEEVING,ELECTRICAL.
What parts can replace P10543?
There are 22 known substitutes for P10543: M5501/1-R6, MILC5501, MIL-C-5501/1 and 19 more. Substitute compatibility should be verified for your specific system.
Is P10543 still available?
P10543 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026