The O-Ring, cataloged under National Stock Number 5331-01-520-5683, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-520-5683 |
| Primary Part Number | 05.1050.021 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 3660 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| 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 |
|---|---|
| 8712 FIND 38 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 05.1050.021 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 5331-01-520-5683 is a O-Ring, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-520-5683 has 2 manufacturer part numbers on file: 8712 FIND 38 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 05.1050.021 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for 05.1050.021: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material Document and Classification: AMS 3660 ASSN STD SINGLE MATERIAL RESPONSE; Special Features: AS568-021 POLYTETRAFLUOROETHYLENE; Center Hole Diameter: 0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN. 4 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.