The O-Ring, cataloged under National Stock Number 5331-01-013-3723, 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 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-013-3723 |
| Primary Part Number | AS3578-208 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Outside Diameter | 0.870 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.604 INCHES MINIMUM AND 0.614 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23513 | Tyco Fire Products Lp (USA) |
| AS3578-208 PRIMARY | Sae International Dba Sae International (USA) |
| 1998379 PIECE 36 | Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto (CAN) |
| 8208-366Y | Minnesota Rubber Co (USA) |
| 2-208N674-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 431074N ITEM NO 8 | Tyco Fire Products Lp (USA) |
| 983-95-37044D0 | Mile Marker Industries, Inc. (USA) |
| 8T7327 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 2-208N219-70 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-208 BUNA-N | 5/9 Secondary reference Dcl Corp Rubber Products Div |
| SAE-AS3578 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 2-208N304-75 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corp Div O-Ring Division |
| AS568-208MIL-G- 21569 CLASS 1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-013-3723 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-013-3723 has 8 manufacturer part numbers on file: 23513 (Tyco Fire Products Lp), AS3578-208 (Sae International Dba Sae International), 1998379 PIECE 36 (Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto), 8208-366Y (Minnesota Rubber Co), 2-208N674-70 (Parker-Hannifin Corp Div O-Ring Division) and 3 more.
4 possible matches (shared part number, not a government interchangeability claim): 3120-01-096-0504, 5975-01-386-8442, 5340-01-576-2671. Verify interchangeability with system specifications before substitution.
Key specifications for AS3578-208: Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Outside Diameter: 0.870 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL. 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.
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.