The O-Ring, cataloged under National Stock Number 5331-01-010-9842, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Custom Filtration Corporation. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-010-9842 |
| Primary Part Number | 49M23 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kaydon Custom Filtration Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.625 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| SK-198-09 | Isometrics Inc (USA) |
| 198-217E5350-3 | Isometrics Inc (USA) |
| 49M23 PRIMARY | Kaydon Custom Filtration Corporation (USA) |
NSN 5331-01-010-9842 is a O-Ring, manufactured by Kaydon Custom Filtration Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-010-9842 has 3 manufacturer part numbers on file: SK-198-09 (Isometrics Inc), 198-217E5350-3 (Isometrics Inc), 49M23 (Kaydon Custom Filtration Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-289-9546. Verify interchangeability with system specifications before substitution.
Key specifications for 49M23: Cross-Sectional Height: 0.625 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.