The O-Ring, cataloged under National Stock Number 5331-01-220-1921, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-220-1921 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 702383-908 | 5/9 Secondary reference Technetics Group Llc Dba Technetics Group Deland Div Technetics Group Deland |
| 702383-908 | 5/9 Secondary reference Pall Corporation Fluid Dynamics Division Dba Pall Corporation Fluid Dynamics |
| 702383-908CP | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 702383-908 | 3/1 Design control — primary reference Sunshine Seal Inc |
| 702383-908CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 5331-01-220-1921 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-220-1921: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 2 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.