The O-Ring, cataloged under National Stock Number 5331-01-352-1972, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Gross Mechanical Laboratories Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Gross Mechanical Laboratories Inc (CAGE 72922) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-352-1972 |
| Primary Part Number | 2-231 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Gross Mechanical Laboratories Inc |
| 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 |
|---|---|
| 2-231 PRIMARY | Gross Mechanical Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 2-231 | 5/9 Secondary reference Cascade Engine Center, Llc |
NSN 5331-01-352-1972 is a O-Ring, manufactured by Gross Mechanical Laboratories Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-352-1972 has 1 manufacturer part number on file: 2-231 (Gross Mechanical Laboratories Inc).
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.