The O-Ring, cataloged under National Stock Number 5331-00-291-9186, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-291-9186 |
| Primary Part Number | ACH6B3DPC5877 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.250 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| ACH6B3DPC5877 PRIMARY | Fairbanks Morse, Llc (USA) |
| ACH6B3APC5877 PRIMARY | Fairbanks Morse, Llc (USA) |
| CFE5877A PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| CFE5877A | 5/9 Secondary reference U.S. Government activity |
| Y043S41-225PC5877 | 3/2 Design control — primary reference U.S. Government activity |
| ACH6B3DPC5877 | 5/9 Secondary reference U.S. Government activity |
| Y043S41-223PC5877 | 3/2 Design control — primary reference U.S. Government activity |
| ACH6B3APC5877 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-291-9186 is a O-Ring, manufactured by Fairbanks Morse, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-291-9186 has 3 manufacturer part numbers on file: ACH6B3DPC5877 (Fairbanks Morse, Llc), ACH6B3APC5877 (Fairbanks Morse, Llc), CFE5877A (Fairbanks Morse, Llc).
Key specifications for ACH6B3DPC5877: Cross-Sectional Height: 0.250 INCHES NOMINAL IN; Material: RUBBER. 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.