PartsTable
Technical Data Sheet
51676-R PIECE 18 ✓ 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

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: COPPER ALLOY 360, casehardening_indicator: NOT CASEHARDENED, material_document_and_classification: ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-273-6960, 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
51676-R PIECE 18
NSN: 5340-01-273-6960
FSC: 5340
CAGE: 73475 — SCHNEIDER ELECTRIC SYSTEMS USA INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationASTM B16 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-01-273-6960
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51676-R PIECE 18 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
MATERIAL: COPPER ALLOY 360
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 360
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B16 ASSN STD SINGLE MATERIAL RESPONSE
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
19867Interchangeable
interchangeable cross-reference
interchangeable
449-7307Interchangeable
interchangeable cross-reference
interchangeable
5661392Interchangeable
interchangeable cross-reference
interchangeable
3K-0360Interchangeable
interchangeable cross-reference
interchangeable
VC-43Interchangeable
interchangeable cross-reference
interchangeable
19867 ITEM 2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51676-R PIECE 18?
51676-R PIECE 18 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 51676-R PIECE 18?
There are 6 known substitutes for 51676-R PIECE 18: 19867, 449-7307, 5661392 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51676-R PIECE 18?
51676-R PIECE 18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-273-6960. This indicates validated use in U.S. government and defense supply chains.
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