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Technical Data Sheet
71978PC28 ✓ 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 SYNTHETIC, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM, center_hole_diameter: 1.284 INCHES MINIMUM AND 1.308 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, material_document_and_classification: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-104-9102, 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
71978PC28
NSN: 5330-00-104-9102
FSC: 5330
CAGE: 83930 — TRANSDIGM INC DBA ADEL WIGGINS GROUP DIV ADEL WIGGINS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating72.0 SHORE DUROMETER A MINIMUM AND 78.0 SHORE DUROMETER A MAXIMUM
center_hole_diameter1.284 INCHES MINIMUM AND 1.308 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
material_document_and_classificationMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5330-00-104-9102
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 71978PC28 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: O-RING
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
HARDNESS RATING: 63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER: 1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEO-RING
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
HARDNESS RATING63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER1.290 INCHES MINIMUM AND 1.302 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
PS1-30-5-B24Interchangeable
interchangeable cross-reference
interchangeable
501233Interchangeable
interchangeable cross-reference
interchangeable
AN6227-24ESInterchangeable
interchangeable cross-reference
interchangeable
422135Interchangeable
interchangeable cross-reference
interchangeable
SR 832-75-219Interchangeable
interchangeable cross-reference
interchangeable
D49267 ITEM 17Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 71978PC28?
71978PC28 is a PACKING,PREFORMED.
What parts can replace 71978PC28?
There are 10 known substitutes for 71978PC28: PS1-30-5-B24, 501233, AN6227-24ES and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 71978PC28?
71978PC28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-104-9102. This indicates validated use in U.S. government and defense supply chains.
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