Mil-spec part number, AS9386 and AS9385 family
AS9386-117 O-ring: silicone (VMQ), AS568-117 nominal size
AS9386-117 has the AS568-117 nominal size, 0.799 in (20.29 mm) inside diameter by 0.103 in (2.62 mm) cross-section, in silicone (VMQ) procured to SAE AS9386 (AMS7267). The SAE Mobilus record reads: AS9386B current (2021). The same part is also printed as MS9386-117. Its DoD sheet, MS9386, holds the inside-diameter tolerance tighter than AS568 above 0.500 in ID, and the document sets the compound, so an AS568-117 ring is not the same part as AS9386-117. Send the designator exactly as the print reads and we quote it against that document.
- Inside diameter
- 0.799 in20.29 mm; tolerance per the MS9386 sheet
- Cross-section
- 0.103 in2.62 mm, +/- 0.003 in
- AS568 nominal size
- AS568-1171xx series
- Document status
- AS9386B current (2021)SAE-AS9386
Part facts
| Item | Value |
|---|---|
| Part number | AS9386-117; also printed as MS9386-117 |
| Procured to | SAE AS9386 (AMS7267) |
| Size sheet | MS9386 Revision B (1975-01-17), the DoD drawing; canceled on 1999-10-15 and superseded by SAE-AS9386 with the same part numbers |
| SAE document | none beyond the document above |
| Status | AS9386B current (2021) |
| Base polymer | Silicone (VMQ) |
| AS568 nominal size | AS568-117 |
| CAD for the AS568-117 nominal size | AS568-117 STEP 3D solid, AS568-117 DXF 2D drawing, AS568-117 PDF dimensioned drawing; generated from the AS568 nominal dimensions, so verify against your drawing |
| Back-up rings | MS28774-117 (single-turn scarf-cut PTFE) or MS27595-117 (continuous PTFE), both procured to SAE AS8791; both drawings are inactive for new design |
| Dimension | Value | Tolerance |
|---|---|---|
| Inside diameter (ID) | 0.799 in 20.29 mm | tighter than AS568 above 0.500 in ID; see the MS9386 sheet |
| Cross-section (W) | 0.103 in 2.62 mm | +/- 0.003 in (0.08 mm) |
| Outside diameter (reference) | 1.005 in 25.53 mm | derived: ID + 2 x W |
Millimeter values are converted from the inch table. The MS9386 sheet holds the inside-diameter tolerance tighter than AS568 above 0.500 in ID; the drawing governs.
Same nominal size, other documents
Other part numbers for the AS568-117 size
These part numbers name the AS568-117 nominal size under a different document, so each one is a different compound. They are not interchangeable with AS9386-117 unless the print or the buyer's engineering allows it. At this size the family sheets for MS28775-117 and MS29513-117 hold a tighter inside-diameter tolerance than AS568.
| Part number | Document | Polymer | Status |
|---|---|---|---|
| MS28775-117 | MIL-PRF-25732 (MS28775 part drawing) | NBR | Inactive (MIL-PRF-25732); AS28775A current |
| M83461/1-117 | MIL-P-83461/1 | NBR | Canceled; AS83461/1C current |
| M83248/1-117 | MIL-R-83248/1 (Class 1) | FKM | Canceled; AS3209C stabilized; AS83248/1A current |
| M83248/2-117 | MIL-R-83248/2 (Class 2) | FKM | Canceled; AS3581A stabilized; AS83248/2A current |
| AS3209-117 | SAE AS3209 (AMS7276) | FKM | AS3209C stabilized |
| M83485/1-117 | MIL-R-83485 | FKM, low-temperature grade | Canceled |
| M25988/1-117 | MIL-DTL-25988/1 | FVMQ | Active |
| M25988/2-117 | MIL-DTL-25988/2 | FVMQ | Active |
| M25988/3-117 | MIL-DTL-25988/3 | FVMQ | Active |
| M25988/4-117 | MIL-DTL-25988/4 | FVMQ | Active |
| MS29513-117 | MIL-P-5315 (MS29513 part drawing) | NBR | Canceled (MIL-P-5315); AS29513C current |
| AS3582-117 | SAE AS3582 (AMS3304) | VMQ silicone | AS3582 current |
The base polymer
AS9386-117 is silicone (VMQ). The Parker® O-Ring Handbook ORD 5700 range published for the VMQ family (section 2.2) is -54 C to 204 C. That is the polymer family's range, not this document's requirement; the compound sheet for the qualified grade governs.
Material page: Silicone (VMQ) O-rings. Every document in the family: AS9386 and AS9385 O-rings.
Nearby AS9386 part numbers
| Part number | ID in | ID mm | W in | W mm |
|---|---|---|---|---|
| AS9386-117 | 0.799 | 20.29 | 0.103 | 2.62 |
Frequently asked
What is the AS568 nominal size of AS9386-117?
AS9386-117 has the AS568-117 nominal size: 0.799 in (20.29 mm) inside diameter by 0.103 in (2.62 mm) cross-section. The MS9386 sheet holds the inside-diameter tolerance tighter than AS568 above 0.500 in ID, and SAE AS9386 (AMS7267) sets the silicone (VMQ) compound. An AS568-117 ring shares the nominal size but not the tolerance, so it is not the same part as AS9386-117.
Is SAE-AS9386 still active?
The document status reads: AS9386B current (2021). It comes from the SAE Mobilus record listed under Sources, with the date it was read. The MS9386 drawing was canceled on 1999-10-15 and superseded by SAE-AS9386; the cancellation notice keeps the part numbers unchanged.
How do I order AS9386-117?
Send the designator exactly as the print reads, with its revision, any suffix letter, the quantity and the paperwork the order needs. AS9386-117 is quoted and supplied against SAE AS9386 (AMS7267), in the compound the print calls out, with a certificate of conformance with every order. When the print calls out a QPL-listed specification, the finished molded O-ring, or the material it is molded from, comes from a manufacturer listed on that QPL; Conquest supplies it and is not itself on any QPL. A Conquest representative replies within one business day.
Sources
SAE Mobilus: AS9386B (revised 2021-07-07), AS9385A (cancelled October 2020) and AMS7267H (revised 2021-05-19), read 2026-09-27; DLA ASSIST: the SAE-AS9385 withdrawal of adoption notice (2024-02-22), and the MS9386 and MS9385 drawings with their cancellation notices (1999), read 2026-09-27; AS568 nominal dimensions from the Parker O-Ring Handbook ORD 5700, 2021 printing, section IX, AS568 size tables (Series 2-XXX and 3-XXX), pages 9-2 to 9-11, read 2026-10-13; the dash-to-size mapping and the tolerance note from the MS9386 Revision B sheet (1975-01-17) and its cancellation notice (1999-10-15), DLA ASSIST, read 2026-09-27; the other part numbers' dash-to-size mapping and tolerance note from the MS28775 Revision E sheet (1984-03-23, read 2026-10-04) and MS29513 Revision C sheet (1966-09-16, read 2026-09-27), DLA ASSIST; the other part numbers' statuses from DLA ASSIST document details, idents 18115 (MIL-PRF-25732), 33814 (MIL-P-83461/1), 33574 (MIL-R-83248/1), 33575 (MIL-R-83248/2), 33840 (MIL-R-83485/1), 18214 (MIL-DTL-25988/1), 18215 (MIL-DTL-25988/2), 18216 (MIL-DTL-25988/3), 18217 (MIL-DTL-25988/4) and 5334 (MIL-P-5315), read 2026-09-24; SAE Mobilus current-revision records AS83248/2A, read 2026-09-28; AS83461/1C, AS3209C, AS83248/1A, AS3581A, AS29513C and AS3582, read 2026-09-27; AS28775A, read 2026-09-25; the MIL-R-83248/1A cancellation notice (Notice 5, 2008-07-24), DLA ASSIST, read 2026-09-29; the SAE-AS83248/2 adoption record, DLA ASSIST ident 286631, read 2026-09-28; the polymers from the Parker O-Ring Handbook ORD 5700A/US, section 8, pages 8-2, 8-4 and 8-5 (read 2026-09-24); the back-up ring pairing and cut styles from the same handbook, section 6, pages 6-8 and 6-9 (read 2026-09-25); SAE AS8791 and the drawings' status from the MS28774M and MS27595E drawings, DLA ASSIST (read 2026-09-28); Parker O-Ring Handbook ORD 5700A/US, section 2.2, for the polymer family range (read 2026-09-14). Facts are stated in our own words and arrangement; no standard's text or table is reproduced.
Parker is a trademark of Parker Hannifin Corporation; no affiliation or endorsement is implied.
Setting Conquest Seal up as a supplier?
Orders are handled under Conquest Seal's AS9100D quality management system, whose certificate scope includes distribution.
Need AS9386-117 with certification?
Send the part number as the print reads it, the quantity and the paperwork the order needs. A Conquest representative replies within one business day. A person answers (714) 632-9830, Pacific business hours.
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