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Technical Data Sheet
PartsTable / COMPONENT / 271744PC5
271744PC5 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hardness_rating: 68.0 SHORE DUROMETER A NOMINAL OVERALL, rim_surface_width: 0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN, inner_groove_width: 0.125 INCHES NOMINAL IN, peripheral_diameter: 0.625 INCHES NOMINAL IN, center_hole_diameter: 0.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-3626, 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
271744PC5
NSN: 5330-00-297-3626
FSC: 5330
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hardness_rating68.0 SHORE DUROMETER A NOMINAL OVERALL
rim_surface_width0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
inner_groove_width0.125 INCHES NOMINAL IN
peripheral_diameter0.625 INCHES NOMINAL IN
center_hole_diameter0.375 INCHES NOMINAL IN
cross-sectional_height0.188 INCHES NOMINAL IN
cross-sectional_shape_styleSPECIAL
material_document_and_classificationMIL-P-18484 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-297-3626
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 271744PC5 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
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
HARDNESS RATING: 68.0 SHORE DUROMETER A NOMINAL OVERALL
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-18484 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
RIM SURFACE WIDTH: 0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.188 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESPECIAL
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-18484 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
RIM SURFACE WIDTH0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.375 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
PERIPHERAL DIAMETER0.625 INCHES NOMINAL IN
INNER GROOVE WIDTH0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
40-439Interchangeable
interchangeable cross-reference
interchangeable
271678PC2Interchangeable
interchangeable cross-reference
interchangeable
146392PC21Interchangeable
interchangeable cross-reference
interchangeable
12Z62PC7Interchangeable
interchangeable cross-reference
interchangeable
268070PC6Interchangeable
interchangeable cross-reference
interchangeable
40424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 271744PC5?
271744PC5 is a PACKING,PREFORMED.
What parts can replace 271744PC5?
There are 27 known substitutes for 271744PC5: 40-439, 271678PC2, 146392PC21 and 24 more. Substitute compatibility should be verified for your specific system.
Is 271744PC5 still available?
271744PC5 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026