The O-Ring, cataloged under National Stock Number 5331-01-397-1254, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 8 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-397-1254 |
| Primary Part Number | AS3209-328CP OXYGEN CLEAN |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Criticality Code Justification | ZZZW |
| Elongation Percentage | 125 MAXIMUM |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Peripheral Diameter | 2.270 INCHES NOMINAL IN |
| Center Hole Diameter | 1.835 INCHES MINIMUM AND 1.865 INCHES MAXIMUM IN |
| Material | RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| AS3209-328CP OXYGEN CLEAN | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| AMS-R-83248/1 | 3/9 Design control — primary reference Sae International Dba Sae International |
| AS3209-328CP | 3/1 Design control — primary reference Sae International Dba Sae International |
| M83248/1-328 | 5/9 Secondary reference U.S. Government activity |
| 3029-0001-3 FIND 10CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| M83248/1-328CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| AMS-R-83248/1 | 5/9 Secondary reference U.S. Government activity |
| 3029-0001-3 FIND 10 | 5/1 Secondary reference Mission Systems Orchard Park Inc |
NSN 5331-01-397-1254 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-397-1254 has 1 manufacturer part number on file: AS3209-328CP OXYGEN CLEAN (Naval Inventory Control Point Mechanicsburg).
Key specifications for AS3209-328CP OXYGEN CLEAN: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Criticality Code Justification: ZZZW; Elongation Percentage: 125 MAXIMUM. 8 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.