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Technical Data Sheet
12053A ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-552-9457, 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
12053A
NSN: 5330-01-552-9457
FSC: 5330
CAGE: 27296 — HARLEY DAVIDSON MOTOR CO INC (USA)
SPECIFICATIONS
Part Number12053A
NSN5330-01-552-9457
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12053A 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
12053Interchangeable
interchangeable cross-reference
interchangeable
206LInterchangeable
interchangeable cross-reference
interchangeable
917-LH 3/8Interchangeable
interchangeable cross-reference
interchangeable
77C707934-1Interchangeable
interchangeable cross-reference
interchangeable
MS10Interchangeable
interchangeable cross-reference
interchangeable
340V1300Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12053A?
12053A is a RETAINER,PACKING.
What parts can replace 12053A?
There are 7 known substitutes for 12053A: 12053, 206L, 917-LH 3/8 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12053A?
12053A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-552-9457. This indicates validated use in U.S. government and defense supply chains.
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