What is O-Ring Shelf Life?

ARP 5316 Elastomer Shelf Life Recommendation

The Society of Aerospace Engineers (SAE) issued Aerospace Recommended Practice (ARP) 5316 was issued in 1998 to supercede MIL-HDBK-695C (canceled) as the aerospace industry standard. ARP 5316 is often used as a guideline in determining useful shelf life of elastomers used in other industries.

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	5 years: Polyurethane (milleable) 15 years: Nitrile, Neoprene, SBR, HNBR, Polyacrylate Unlimited: Ethylene Propylene, Fluorocarbon, Perfluorinated Elastomer, Butyl, Silicone, Tetrafluoroethylene Propylene (Aflas®), Fluorosilicone.

Elastomer	ASTM	ARP 5316 Shelf Life
Aflas®		Unlimited
Butyl Rubber, Isobutylene Isoprene	IIR	Unlimited
Chloroprene (Neoprene®)	CR	15 Years
Epichlorohydrin (Hydrin®)	ECO	NA
Ethylene Acrylic (Vamac®)	AEM	15 Years
Ethylene Propylene, EPDM or EP	EP	Unlimited
Fluorocarbon (Viton®)	FKM	Unlimited
Fluorosilicone	FVMQ	Unlimited
Hydrogenated Nitrile, HNBR or HSN	HNBR	15 Years
Nitrile (Buna-N or NBR)	NBR	15 Years
Polyacrylate	ACM	15 Years
Polyurethane (Polyester or Polyether)	AU / EU	5 Years
Silicone	VMQ	Unlimited
Styrene Butadiene (Buna-S)	SBR	15 Years

Series	Dash Number	Material Spec	Duro	ARP 5316 Shelf Life
Perfluorocarbon (FFKM)
AMS7257	-001 THRU 932	AMS7257	75	Unlimited
Fluorocarbons (FKM)
AS3084	-01 THRU -32	AMS7276	75	Unlimited
AS3085	-001 THRU -475	AMS7276	75	Unlimited
AS3208	-01 THRU -32	AMS7276	75	Unlimited
AS3209	-001 THRU -475	AMS7276	75	Unlimited
MS9387	-001 THRU 932	AMS7278	75	Unlimited
AS3581	-001 THRU 932	AMS7259	90	Unlimited
MS9970	-001 THRU 932	AMS7279	90	Unlimited
AS43013	-001 THRU -475	DTD5613A	80	Unlimited
AS43003	-904 THRU 932	DTD5613A	80	Unlimited
M83248/1	-001 THRU -932	MIL-R-83248 TY1 CL1	75	Unlimited
M83248/2	-001 THRU -932	MIL-R-83248 TY1 CL2	90	Unlimited
M83485/1 (GLT Type)	-001 THRU -932	MIL-R-83485	75	Unlimited
M83485/1 (GLT Type)	-001 THRU -932	AMS-R-83485	75	Unlimited
New	-001 THRU -932	AMS7XXX (-40 FKM)	75	Unlimited
MA3352	A0018-E4000	AMS7276	75	Unlimited
MS17413	-001 THRU -932	MIL-R-83248 TY1 CL1	75	Unlimited
NAS1523( ) XX E	-04 THRU -32	MIL-R-83248/1 CL1	75	Unlimited
Fluorosilicones (FVMQ)
M25988/1	-001 THRU -932	MIL-R-25988, CL1GR70	70	Unlimited
M25988/2	-001 THRU -932	MIL-R-25988, CL3GR75	75	Unlimited
M25988/3	-001 THRU -932	MIL-R-25988, CL1GR60	60	Unlimited
M25988/4	-001 THRU -932	MIL-R-25988, CL1GR80	80	Unlimited
AS9966 (was MS9966)	-01 THRU -32	AMS7273	75	Unlimited
AS9967 (was MS9967)	-001 THRU -475	AMS7273	75	Unlimited
NAS1523( ) XX R	-04 THRU -32	MIL-R-25988, CL1GR60	60	Unlimited
Silicones (VMQ)
AS3582	-001 THRU -932	AMS3304	70	Unlimited
MS9068	-004 THRU -460	AMS3304	70	Unlimited
AS9385 (was MS9385)	-01 THRU -32	AMS7267	75	Unlimited
AS9386 (was MS9386)	-001 THRU -475	AMS7267	75	Unlimited
NAS1523( ) XX W	-04 THRU -32	AMS3304	70	Unlimited
NAS1523( ) XX H	-04 THRU -32	AMS7267	75	Unlimited
Nitriles (NBR)
MS28775	-001 THRU -932	MIL-P-25732	70	15 Years
MS28775	-001 THRU -932	AMS-P-25732	70	15 Years

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