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Technical Data Sheet
04A ✓ 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 KEY BLANK is a the manufacturer industrial component. Key specifications include special_features: BRASS OR NICKEL SILVER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-821-8558, 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
04A
NSN: 5340-00-821-8558
FSC: 5340
CAGE: 35281 — DOMINION LOCK CO LTD (CAN)
SPECIFICATIONS
special_featuresBRASS OR NICKEL SILVER
NSN5340-00-821-8558
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 04A 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESBRASS OR NICKEL SILVER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
736857-2Upgraded Successor
successor cross-reference
successor
1004AUpgraded Successor
successor cross-reference
successor
300316Upgraded Successor
successor cross-reference
successor
812E1071Interchangeable
interchangeable cross-reference
interchangeable
35AInterchangeable
interchangeable cross-reference
interchangeable
5304939Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 04A?
04A is a KEY BLANK.
What parts can replace 04A?
There are 21 known substitutes for 04A: 736857-2, 1004A, 300316 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 04A?
04A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-821-8558. This indicates validated use in U.S. government and defense supply chains.
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