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PartsTable / COMPONENT / 1521880REV4
1521880REV4 ✓ 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 color: BLACK, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, hardness_rating: 63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL, peripheral_diameter: 1.375 INCHES NOMINAL IN, center_hole_diameter: 0.250 INCHES NOMINAL IN, cross-sectional_height: 0.469 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-6873, 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
1521880REV4
NSN: 5330-00-285-6873
FSC: 5330
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hardness_rating63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
peripheral_diameter1.375 INCHES NOMINAL IN
center_hole_diameter0.250 INCHES NOMINAL IN
cross-sectional_height0.469 INCHES NOMINAL IN
material_document_and_classificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-285-6873
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1521880REV4 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
•
PERIPHERAL DIAMETER: 1.375 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HARDNESS RATING: 63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
•
COLOR: BLACK
•
CROSS-SECTIONAL HEIGHT: 0.469 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER1.375 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
COLORBLACK
CROSS-SECTIONAL HEIGHT0.469 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1521880Interchangeable
interchangeable cross-reference
interchangeable
36497Interchangeable
interchangeable cross-reference
interchangeable
99136497Interchangeable
interchangeable cross-reference
interchangeable
5330PL0653689Interchangeable
interchangeable cross-reference
interchangeable
13-650Interchangeable
interchangeable cross-reference
interchangeable
11-5870Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1521880REV4?
1521880REV4 is a PACKING,PREFORMED.
What parts can replace 1521880REV4?
There are 8 known substitutes for 1521880REV4: 1521880, 36497, 99136497 and 5 more. Substitute compatibility should be verified for your specific system.
Is 1521880REV4 still available?
1521880REV4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026