The O-Ring, cataloged under National Stock Number 5331-01-538-7816, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hughes Corp Div Weschler Electric. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-538-7816 |
| Primary Part Number | 2502000406 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hughes Corp Div Weschler Electric |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.301 INCHES NOMINAL IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| 2502000406 PRIMARY | Hughes Corp Div Weschler Electric (USA) |
| Reference | Meaning |
|---|---|
| CDTLB00103 SYM NO 2 | 5/1 Secondary reference Hughes Corp Div Weschler Electric |
NSN 5331-01-538-7816 is a O-Ring, manufactured by Hughes Corp Div Weschler Electric, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-538-7816 has 1 manufacturer part number on file: 2502000406 (Hughes Corp Div Weschler Electric).
Key specifications for 2502000406: Temp Rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 0.301 INCHES NOMINAL IN. 5 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.