The O-Ring, cataloged under National Stock Number 5331-01-172-1864, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Heil Environmental Industries. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Heil Environmental Industries (CAGE 27996) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-172-1864 |
| Primary Part Number | 26A3239 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Heil Environmental Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 26A3239 PRIMARY | Heil Environmental Industries (USA) |
NSN 5331-01-172-1864 is a O-Ring, manufactured by Heil Environmental Industries, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-172-1864 has 1 manufacturer part number on file: 26A3239 (Heil Environmental Industries).
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.