The O-Ring, cataloged under National Stock Number 5331-01-503-1097, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-503-1097 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5343-04 | 5/9 Secondary reference Nuflo, Inc. |
| 5343-04 | 5/9 Secondary reference Nucraloy Corp |
| 3255811-5 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5331-01-503-1097 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-503-1097: Special Features: DRAWING REFERENCE USE CAGE CODE 10001 WITH PART NUMBER 3255811-5; End Item Identification: HD-1157/SPY DDG91&UP, COOLER, WATER, ELEK EQPT; HD-1140A/SPY-1D(V) DDG91&UP, CLR, WTR, ELEX EQPT A. 0 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.