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PartsTable / COMPONENT / 845-2181268PIECE4
845-2181268PIECE4 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-054-3455, 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
845-2181268PIECE4
NSN: 5330-01-054-3455
FSC: 5330
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5330-01-054-3455
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 845-2181268PIECE4 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9487Interchangeable
interchangeable cross-reference
interchangeable
A5388CInterchangeable
interchangeable cross-reference
interchangeable
A1616-4Interchangeable
interchangeable cross-reference
interchangeable
A1616-9Interchangeable
interchangeable cross-reference
interchangeable
1616-4Interchangeable
interchangeable cross-reference
interchangeable
37TB16F RS12AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-2181268PIECE4?
845-2181268PIECE4 is a GASKET.
What parts can replace 845-2181268PIECE4?
There are 15 known substitutes for 845-2181268PIECE4: 9487, A5388C, A1616-4 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-2181268PIECE4?
845-2181268PIECE4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-054-3455. 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