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PartsTable / COMPONENT / 54-51-1446
54-51-1446 ✓ 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

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, minor_width: 0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN, construction: SOLIDSOLID, style_designator: CIRCULAR, aperture_diameter: 30.750 INCHES NOMINAL30.750 INCHES NOMINAL IN, fabrication_method: SOLIDSOLID. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-087-1958, 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
54-51-1446
NSN: 5330-01-087-1958
FSC: 5330
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
minor_width0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN
constructionSOLIDSOLID
style_designatorCIRCULAR
aperture_diameter30.750 INCHES NOMINAL30.750 INCHES NOMINAL IN
fabrication_methodSOLIDSOLID
cross-sectional_width0.875 INCHES NOMINAL0.875 INCHES NOMINAL IN
cross-sectional_shape_styleSPECIALSPECIAL
material_document_and_classificationMIL-R-15624,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-087-1958
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 54-51-1446 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
•
FABRICATION METHOD: SOLIDSOLID
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
•
CONSTRUCTION: SOLIDSOLID
•
CROSS-SECTIONAL WIDTH: 0.875 INCHES NOMINAL0.875 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIALSPECIAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
APERTURE DIAMETER: 30.750 INCHES NOMINAL30.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FABRICATION METHODSOLIDSOLID
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
CONSTRUCTIONSOLIDSOLID
CROSS-SECTIONAL WIDTH0.875 INCHES NOMINAL0.875 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIALSPECIAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624,CL 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
APERTURE DIAMETER30.750 INCHES NOMINAL30.750 INCHES NOMINAL IN
MINOR WIDTH0.281 INCHES NOMINAL0.281 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
8612484Interchangeable
interchangeable cross-reference
interchangeable
3016879Interchangeable
interchangeable cross-reference
interchangeable
3017117Interchangeable
interchangeable cross-reference
interchangeable
3017217Interchangeable
interchangeable cross-reference
interchangeable
176851 REV FInterchangeable
interchangeable cross-reference
interchangeable
3017112Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54-51-1446?
54-51-1446 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace 54-51-1446?
There are 21 known substitutes for 54-51-1446: 8612484, 3016879, 3017117 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 54-51-1446?
54-51-1446 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-087-1958. 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