The O-Ring, cataloged under National Stock Number 5331-01-690-1856, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Stidd Systems, Inc. Dba Stidd Systems 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-690-1856 |
| Primary Part Number | 810-3-104 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Stidd Systems, Inc. Dba Stidd Systems 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 |
|---|---|
| 810-3-104 PRIMARY | Stidd Systems, Inc. Dba Stidd Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 500-200-NPNF-ITEM12 | C/1 Advisory reference — outside the item-of-supply concept Stidd Systems, Inc. Dba Stidd Systems Inc |
NSN 5331-01-690-1856 is a O-Ring, manufactured by Stidd Systems, Inc. Dba Stidd Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-690-1856 has 1 manufacturer part number on file: 810-3-104 (Stidd Systems, Inc. Dba Stidd Systems Inc).
Key specifications for 810-3-104: Part Name Assigned by Controlling Agency: SEAL RING,ARM. 0 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.