The O-Ring, cataloged under National Stock Number 5331-01-610-8791, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Haltec Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-610-8791 |
| Primary Part Number | OR-220-TG |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Haltec Corp |
| Status | ACTIVE |
| Outside Diameter | 0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Color | BLACK |
| Material | PLASTIC POLYSTYRENE |
| 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 |
|---|---|
| OR-220-TG | Marathon Tyres Pty Ltd (AUS) |
| 7421231681 | Arquus (FRA) |
| OR-220-TG PRIMARY | Haltec Corp (USA) |
| 21231681 | Volvo Lastvagnar Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| 21231681 | 5/9 Secondary reference Volvo Lastvagnar Ab - Volvo Truckcorp |
NSN 5331-01-610-8791 is a O-Ring, manufactured by Haltec Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-610-8791 has 4 manufacturer part numbers on file: OR-220-TG (Marathon Tyres Pty Ltd), 7421231681 (Arquus), OR-220-TG (Haltec Corp), 21231681 (Volvo Lastvagnar Aktiebolag).
Key specifications for OR-220-TG: Outside Diameter: 0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN; Color: BLACK; Part Name Assigned by Controlling Agency: SEALING RING FOR MULTI-PIECE RIMS; Material: PLASTIC POLYSTYRENE. 3 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.