The O-Ring, cataloged under National Stock Number 5331-00-166-1001, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 39 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-166-1001 |
| Primary Part Number | AS3209-020 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AS3209-020 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| AS3085-020AMS 7280 | Sae International Dba Sae International (USA) |
| 649-393-020-0 | Cfm International Inc Dba Cfm International (USA) |
| J221P020 | General Electric Company (USA) |
| XPG0261500035 | Rolls-Royce Solutions Gmbh (DEU) |
| 020-17107A | Parker Hannifin Corporation Div O-Ring Division (USA) |
| AS3209-020 PRIMARY | Sae International Dba Sae International (USA) |
| J221P020 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| 2-020V0747-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-020V1226-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| M83248/1-020 | Lockheed Martin Aeronautical Systems Support Company Dba Lmassc (USA) |
| Reference | Meaning |
|---|---|
| M83248/1-020 | 5/9 Secondary reference Seals & Packings, Llc |
| 3634-96-11-90 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| PL-D200660E001 REV J IT NO 22 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 10117056 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| PL-D200661E001 REV J IT NO 22 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2-020V747-75 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| M83485/1-020 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 82-20020-07 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 501-1819 PC. NO. 9 | 5/1 Secondary reference Portland Valve Llc |
| S9413-020 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2-20-77-545 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 01011609 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 607948.001 SEQ 272 | C/1 Advisory reference — outside the item-of-supply concept Flowserve Us Company Div Flow Control Division |
| MILR83248 | 5/9 Secondary reference U.S. Government activity |
| AS3085-020AMS 7280 | 5/9 Secondary reference U.S. Government activity |
| M82348-1-020 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| M83248/1-020 | 5/9 Secondary reference U.S. Government activity |
| AS3209-020 | 3/9 Design control — primary reference U.S. Government activity |
| 580531 | D/9 Drawing number reference only Eaton Aerospace, Llc Dba Jackson South |
| 001183.651.000 | C/1 Advisory reference — outside the item-of-supply concept Flowserve Us Company Div Flow Control Division |
NSN 5331-00-166-1001 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: cancelled.
NSN 5331-00-166-1001 has 11 manufacturer part numbers on file: AS3209-020 (Leonardo Spa Helicopters Division - Production Site), AS3085-020AMS 7280 (Sae International Dba Sae International), 649-393-020-0 (Cfm International Inc Dba Cfm International), J221P020 (General Electric Company), XPG0261500035 (Rolls-Royce Solutions Gmbh) and 6 more.
9 possible matches (shared part number, not a government interchangeability claim): 5331-00-166-1060, 5331-00-167-5128, 5365-00-726-4161. Verify interchangeability with system specifications before substitution.
Key specifications for AS3209-020: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.989 INCHES MINIMUM AND 1.019 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 125 MAXIMUM. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5331-00-166-1001 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.