The O-Ring, cataloged under National Stock Number 5331-01-579-8163, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-579-8163 |
| Primary Part Number | R49388-906J |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Cross-Sectional Height | 0.078 INCHES NOMINAL IN |
| Material Document and Classification | AMS-3304 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.468 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 |
|---|---|
| 8601B | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| PL12424404 PC 847 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| R49388-906J PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| PL12424404 PC 847 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| R49388-906J | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 8601B | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 8601B | 3/9 Design control — primary reference U.S. Government activity |
| R49388-906J | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| PL12424404 PC 847 | 5/9 Secondary reference U.S. Government activity |
| PL12424404 PC 847 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 8601B | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 5331-01-579-8163 is a O-Ring, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-579-8163 has 3 manufacturer part numbers on file: 8601B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), PL12424404 PC 847 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), R49388-906J (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for R49388-906J: Cross-Sectional Height: 0.078 INCHES NOMINAL IN; Material Document and Classification: AMS-3304 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 0.468 INCHES NOMINAL IN; End Item Identification: COMPRESSOR MODEL 13NL45. 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.