The O-Ring, cataloged under National Stock Number 5331-01-522-9581, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Evac North America Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-522-9581 |
| Primary Part Number | 3752211 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Evac North America Inc |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 3752211 PRIMARY | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 3752211 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 5331PL2036667 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-01-522-9581 is a O-Ring, manufactured by Evac North America Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-522-9581 has 1 manufacturer part number on file: 3752211 (Evac North America Inc).
Key specifications for 3752211: Special Features: DATA FROM S9593-XX-XXX-XXX/58568, TABLE 7-4 FLUSH VALVE ASSEMBLY, PAGE 7-11, FIG & INDEX NUMBER 7-2-47; End Item Identification: VACUUM TOILET VT ELONGATED BOWL (CARRIER MOUNTED W/AUTOFLUSH); Material: RUBBER SYNTHETIC. 1 specification is 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.