The O-Ring, cataloged under National Stock Number 5331-00-146-9529, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-146-9529 |
| Primary Part Number | 5800-0121 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.043 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| AE15380-121 | Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA) |
| 5800-0121 PRIMARY | Kidde-Fenwal, Llc (USA) |
| 182577 | Woodward, Inc. Div Fuel Systems and Controls (USA) |
| 121-11648 PRIMARY | Parker Hannifin Corporation Div O-Ring Division (USA) |
| L0308 2-121 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 2-121L308-8 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-121L308-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-00-146-9529 is a O-Ring, manufactured by Kidde-Fenwal, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-146-9529 has 5 manufacturer part numbers on file: AE15380-121 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 5800-0121 (Kidde-Fenwal, Llc), 182577 (Woodward, Inc. Div Fuel Systems and Controls), 121-11648 (Parker Hannifin Corporation Div O-Ring Division), L0308 2-121 (Parker-Hannifin Corp Div O-Ring Division).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-200-6295. Verify interchangeability with system specifications before substitution.
Key specifications for 5800-0121: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 1.043 INCHES MINIMUM AND 1.055 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q. 3 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.