The O-Ring, cataloged under National Stock Number 5331-01-665-5637, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Fairmount Automation, Inc Dba Fairmount Automation 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Fairmount Automation, Inc Dba Fairmount Automation Inc (CAGE 09TT2) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-665-5637 |
| Primary Part Number | 50050-080 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Fairmount Automation, Inc Dba Fairmount Automation Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 50050-080 PRIMARY | Fairmount Automation, Inc Dba Fairmount Automation Inc (USA) |
| Reference | Meaning |
|---|---|
| DD2010208 ITEM 110 | D/9 Drawing number reference only Fairmount Automation, Inc Dba Fairmount Automation Inc |
NSN 5331-01-665-5637 is a O-Ring, manufactured by Fairmount Automation, Inc Dba Fairmount Automation Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-665-5637 has 1 manufacturer part number on file: 50050-080 (Fairmount Automation, Inc Dba Fairmount Automation 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.