The O-Ring, cataloged under National Stock Number 5331-00-393-3876, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Proponent, Inc. Dba Proponent. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-393-3876 |
| Primary Part Number | S9413-590 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Proponent, Inc. Dba Proponent |
| Status | ACTIVE |
| Temp Rating | -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.293 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| S9413-590 | Proponent, Inc. Dba Proponent (USA) |
| Reference | Meaning |
|---|---|
| AS3209-590 | 5/9 Secondary reference U.S. Government activity |
| S9413-590 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| S9413-590 | 3/2 Design control — primary reference U.S. Government activity |
| AMS 7276G | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-393-3876 is a O-Ring, manufactured by Proponent, Inc. Dba Proponent, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-393-3876 has 1 manufacturer part number on file: S9413-590 (Proponent, Inc. Dba Proponent).
Key specifications for S9413-590: Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 125 MAXIMUM. 6 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.