ARP 5316 Elastomer Shelf Life Recommendation
The Society of Aerospace Engineers (SAE) issued Aerospace Recommended Practice (ARP) 5316. It was issued in 1998 to supersede MIL-HDBK-695 as the aerospace industry standard in governing o-rings and molded seals shelf life. ARP 5316 is often used as a guideline in determining useful shelf life of elastomers used in other industries.
Recommended Shelf life
- 5 years: Polyurethane (millable), SBR, Natural Rubber, Polybutadine, Polyisoprene
- 15 years: Nitrile, Neoprene, HNBR, Polyacrylate, Butyl
- Unlimited: Ethylene Propylene, Fluorocarbon, Perfluorinated Elastomer, Silicone, Tetrafluoroethylene Propylene (Aflas®), Fluorosilicone.
| Elastomer | ASTM | Shelf Life |
| Aflas® | Unlimited | |
| Butyl Rubber, Isobutylene Isoprene | IIR | 15 Years |
| 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 | 5 Years |
| Series | Dash Number | Material Spec | Duro | Shelf Life |
| Perfluorocarbon (FFKM) | Unlimited | |||
| AMS7257 | -001 THRU 932 | AMS7257 | 75 | |
| Fluorocarbons (FKM) | Unlimited | |||
| AS3084 | -01 THRU -32 | AMS7276 | 75 | |
| AS3085 | -001 THRU -475 | AMS7276 | 75 | |
| AS3208 | -01 THRU -32 | AMS7276 | 75 | |
| AS3209 | -001 THRU -475 | AMS7276 | 75 | |
| MS9387 | -001 THRU 932 | AMS7278 | 75 | |
| AS3581 | -001 THRU 932 | AMS7259 | 90 | |
| MS9970 | -001 THRU 932 | AMS7279 | 90 | |
| AS43013 | -001 THRU -475 | DTD5613A | 80 | |
| AS43003 | -904 THRU 932 | DTD5613A | 80 | |
| M83248/1 | -001 THRU -932 | MIL-R-83248 TY1 CL1 | 75 | |
| M83248/2 | -001 THRU -932 | MIL-R-83248 TY1 CL2 | 90 | |
| M83485/1 (GLT Type) | -001 THRU -932 | MIL-R-83485 | 75 | |
| M83485/1 (GLT Type) | -001 THRU -932 | AMS-R-83485 | 75 | |
| New | -001 THRU -932 | AMS7XXX (-40 FKM) | 75 | |
| MA3352 | A0018-E4000 | AMS7276 | 75 | |
| MS17413 | -001 THRU -932 | MIL-R-83248 TY1 CL1 | 75 | |
| NAS1523( ) XX E | -04 THRU -32 | MIL-R-83248/1 CL1 | 75 | |
| Fluorosilicones (FVMQ) | Unlimited | |||
| M25988/1 | -001 THRU -932 | MIL-R-25988, CL1GR70 | 70 | |
| M25988/2 | -001 THRU -932 | MIL-R-25988, CL3GR75 | 75 | |
| M25988/3 | -001 THRU -932 | MIL-R-25988, CL1GR60 | 60 | |
| M25988/4 | -001 THRU -932 | MIL-R-25988, CL1GR80 | 80 | |
| AS9966 (was MS9966) | -01 THRU -32 | AMS7273 | 75 | |
| AS9967 (was MS9967) | -001 THRU -475 | AMS7273 | 75 | |
| NAS1523( ) XX R | -04 THRU -32 | MIL-R-25988, CL1GR60 | 60 | |
| Silicones (VMQ) | Unlimited | |||
| AS3582 | -001 THRU -932 | AMS3304 | 70 | |
| MS9068 | -004 THRU -460 | AMS3304 | 70 | |
| AS9385 (was MS9385) | -01 THRU -32 | AMS7267 | 75 | |
| AS9386 (was MS9386) | -001 THRU -475 | AMS7267 | 75 | |
| NAS1523( ) XX W | -04 THRU -32 | AMS3304 | 70 | |
| NAS1523( ) XX H | -04 THRU -32 | AMS7267 | 75 | |
| Nitriles (NBR) | 15 Years | |||
| MS28775 | -001 THRU -932 | MIL-P-25732 | 70 | |
| MS28775 | -001 THRU -932 | AMS-P-25732 | 70 |