Aerospace O-ring family, silicone, AMS3304
AS3582 O-rings: silicone 65 to 75 to AMS3304
AS3582-XXX is a silicone (VMQ) O-ring made from AMS3304 material, the heat and weather resistant silicone rubber in the 65 to 75 hardness class, in the AS568 size the dash names. SAE-AS3582 and SAE-AMS3304 are both current SAE documents, and neither states a qualified products list. Older drawings may carry the legacy MS9068 callout, which manufacturers cross-reference to the same material.
- Polymer
- Silicone (VMQ)heat and weather resistant
- Durometer
- 65 to 75the AMS3304 class
- Current drawing
- SAE-AS35822018-08-23
- QPL
- Not statedSAE document
Specification: documents, status, material
| Item | Value | Source |
|---|---|---|
| Size sheet | SAE-AS3582, packing, preformed, O-ring seal AMS3304: current, 2018-08-23 | SAE Mobilus, read 2026-09-06 |
| Material document | SAE-AMS3304, silicone rubber, heat and weather resistant (65 to 75): current AMS3304J, 2019-04-05 | SAE Mobilus, read 2026-09-06 |
| Legacy callout MS9068 | Cross-referenced to AMS3304 by manufacturers; MS drawing status: ask with the quote | manufacturers' cross-references |
| Base polymer | Silicone (VMQ) | document title |
| Durometer | 65 to 75, the hardness class in the AMS3304 title; manufacturers supply it at 70 | SAE Mobilus title; Parker® ORD 5700 (2021) |
| Slash sheets / classes | None | DLA ASSIST and SAE Mobilus, read 2026-09-06 |
| Boss variant | None on record | DLA ASSIST and SAE Mobilus, read 2026-09-06 |
| QPL | Not stated on the SAE pages read | DLA ASSIST and SAE Mobilus, read 2026-09-06 |
| Service | Heat and weather resistant (the AMS3304 title) | document title |
| Compounds manufacturers pair with this document | Parker ORD 5700 (2021) Table 8-4 pairs S1224-70 with AMS3304 in the 65 to 75 band | Parker ORD 5700 (2021) |
Status strings are quoted as DLA ASSIST and SAE Mobilus print them (Canceled is ASSIST's spelling; Inactive means inactive for new design; Withdrawn is SAE's word). Conquest Seal is a distributor and is not itself listed on any qualified products list.
Designator to AS568 size
AS3582-XXX is the AS568-XXX size, per the manufacturers' cross-references. One manufacturer's 2024 cross-reference flags MS9068 parts above 0.500 in inside diameter as tight tolerance; the drawing governs. No boss variant is on record.
| AS3582 | AS568 dash | ID in | W in | ID mm | W mm |
|---|---|---|---|---|---|
| AS3582-006 | AS568-006 | 0.114 | 0.070 | 2.90 | 1.78 |
| AS3582-010 | AS568-010 | 0.239 | 0.070 | 6.07 | 1.78 |
| AS3582-012 | AS568-012 | 0.364 | 0.070 | 9.25 | 1.78 |
| AS3582-112 | AS568-112 | 0.487 | 0.103 | 12.37 | 2.62 |
| AS3582-114 | AS568-114 | 0.612 | 0.103 | 15.54 | 2.62 |
| AS3582-116 | AS568-116 | 0.737 | 0.103 | 18.72 | 2.62 |
| AS3582-210 | AS568-210 | 0.734 | 0.139 | 18.64 | 3.53 |
| AS3582-214 | AS568-214 | 0.984 | 0.139 | 24.99 | 3.53 |
| AS3582-222 | AS568-222 | 1.484 | 0.139 | 37.69 | 3.53 |
| AS3582-325 | AS568-325 | 1.475 | 0.210 | 37.47 | 5.33 |
Millimeter values are converted from the inch table. The dash is a size lookup and never a material; the same dash on another family on the mil-spec hub is the same size in a different document. Full chart: AS568 size chart.
Where the documents stand
This family is SAE-native: AS3582 is the size sheet and its title names AMS3304 as the material outright, so there is no MIL supersession chain to follow. SAE issued AS3582 on 2018-08-23 and AMS3304 is at revision J of 2019-04-05. The MS9068 callout that older drawings carry is cross-referenced to AMS3304 by manufacturers; ask with the quote for its document status.
A print that reads AS3582-XXX is quoted against AS3582 with AMS3304 as the compound. A print that reads MS9068-XXX is quoted the same way, with the MS number noted on the paperwork.
The base polymer
The polymer behind this family is silicone (VMQ). The Parker O-Ring Handbook ORD 5700 family range on file for Silicone (VMQ) is -54 C to 204 C; that is the polymer family's range, not this document's requirement, and the compound sheet for the qualified grade governs. Parker notes that specification temperature limits do not necessarily represent operating temperature limits.
Material page: Silicone (VMQ) O-rings. Temperature ranges by family: O-ring temperature ranges.
How we quote this family
Send the designator as printed, AS3582-XXX (or MS9068-XXX from an older drawing), with the dash, the quantity and the certification the order needs. The quote reads: supplied against the AS3582 drawing in an AMS3304 silicone compound, with a certificate of conformance and lot traceability. If the print names a compound number, include it and we quote that compound.
Related pages
Other families: MS28775, M83461/1, M83248/1 and M83248/2, M83485/1, M25988/1, /2, /3 and /4, MS29513 and MS29512, NAS1611 and NAS1612, AS9386 and AS9385, AS3209 and AS3208.
Frequently asked
What compound is AS3582, and what is AMS3304?
AS3582 is the SAE O-ring seal drawing whose title names AMS3304, the heat and weather resistant silicone rubber document in the 65 to 75 hardness class. So an AS3582-XXX part is a silicone (VMQ) O-ring made from AMS3304 material in the AS568 size the dash names. Parker ORD 5700 (2021) pairs S1224-70 with AMS3304.
What is MS9068, and is it the same as AS3582?
MS9068 is a legacy O-ring callout that manufacturers cross-reference to AMS3304 silicone, the same material AS3582 names. Ask with the quote for its document status. Send the callout as the print reads it and we quote the AMS3304 part.
What durometer is an AS3582 O-ring?
The AMS3304 title sets the class at 65 to 75, and manufacturers supply it at 70. Parker ORD 5700 (2021) lists its S1224-70 against AMS3304 in that band.
Is AMS3304 current?
Yes. SAE Mobilus lists AMS3304 at revision J dated 2019-04-05 and AS3582 at its 2018-08-23 issue. Neither page states a qualified products list.
Related guides
Sources
SAE Mobilus: AS3582 (2018-08-23), AMS3304J (2019-04-05), read 2026-09-06; Parker O-Ring Handbook ORD 5700 (2021), Table 8-4, for the compound pairing; Manufacturers' aerospace cross-references (2024) for the MS9068 pairing and the tolerance note; AS568 dimensions from this site's size chart. Facts are stated in our own words and our own arrangement; no standard's text or table and no manufacturer's cross-reference table is reproduced. Compound pairings are the named manufacturer's published statements, not qualified products list entries.
Parker is a trademark of Parker Hannifin Corporation. No affiliation or endorsement is implied.
Need AS3582 with certification?
Send the designator as the print reads it, the dash, the quantity and the paperwork the order needs. A Conquest representative replies with the part quoted against the document.
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