The O-Ring, cataloged under National Stock Number 5331-01-471-3553, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Robertson Fuel Systems, L.l.c.. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-471-3553 |
| Primary Part Number | HM022-146 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Robertson Fuel Systems, L.l.c. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES NOMINAL IN |
| Center Hole Diameter | 0.800 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 |
|---|---|
| HM022-146 PRIMARY | Robertson Fuel Systems, L.l.c. (USA) |
NSN 5331-01-471-3553 is a O-Ring, manufactured by Robertson Fuel Systems, L.l.c., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-471-3553 has 1 manufacturer part number on file: HM022-146 (Robertson Fuel Systems, L.l.c.).
Key specifications for HM022-146: Cross-Sectional Height: 0.100 INCHES NOMINAL IN; Center Hole Diameter: 0.800 INCHES NOMINAL IN; End Item Identification: NSN 1560-01-456-2704, INSTALLATION KIT, TANK, FUEL AIRCRAFT; Material: RUBBER. 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.