The O-Ring, cataloged under National Stock Number 5331-01-586-5543, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pacific Consolidated Industries Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-586-5543 |
| Primary Part Number | S9553-CH-MMO-010 FIG 7-6-110 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pacific Consolidated Industries Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Center Hole Diameter | 3.375 INCHES NOMINAL IN |
| 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 |
|---|---|
| S9553-CH-MMO-010 FIG 7-6-110 | Pacific Consolidated Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| Y49021-237 | 3/1 Design control — primary reference Pacific Consolidated Industries Llc |
NSN 5331-01-586-5543 is a O-Ring, manufactured by Pacific Consolidated Industries Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-586-5543 has 1 manufacturer part number on file: S9553-CH-MMO-010 FIG 7-6-110 (Pacific Consolidated Industries Llc).
Key specifications for S9553-CH-MMO-010 FIG 7-6-110: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Center Hole Diameter: 3.375 INCHES NOMINAL IN; End Item Identification: VSA MODULE ASSEMBLY. 2 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.