The O-Ring, cataloged under National Stock Number 5331-01-674-9149, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-674-9149 |
| Primary Part Number | 4345398 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.847 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-25988/3 MIL SPEC SINGLE MATERIAL RESPONSE |
| Color | BLUE |
| Center Hole Diameter | 1.862 INCHES NOMINAL IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| 4345398 PRIMARY | Oshkosh Defense Llc (USA) |
NSN 5331-01-674-9149 is a O-Ring, manufactured by Oshkosh Defense Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-674-9149 has 1 manufacturer part number on file: 4345398 (Oshkosh Defense Llc).
Key specifications for 4345398: Cross-Sectional Height: 1.847 INCHES MINIMUM AND 1.877 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-25988/3 MIL SPEC SINGLE MATERIAL RESPONSE; Color: BLUE; Center Hole Diameter: 1.862 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.