The O-Ring A428, cataloged under National Stock Number 5331-01-649-7059, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | O-Ring A428 |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Sae International Dba Sae International (CAGE 0U583); General Atomics Dba General Atomics Corp (CAGE 4V360) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-649-7059 |
| Primary Part Number | SAE J515 HK183X0105H |
| Item Name | O-Ring A428 |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| SAE J515 HK183X0105H PRIMARY | Sae International Dba Sae International (USA) |
| SAE J515 HK183X0105H | General Atomics Dba General Atomics Corp (USA) |
| Reference | Meaning |
|---|---|
| SAE J515 HK183X0105H | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-01-649-7059 is a O-Ring A428, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-649-7059 has 2 manufacturer part numbers on file: SAE J515 HK183X0105H (Sae International Dba Sae International), SAE J515 HK183X0105H (General Atomics Dba General Atomics Corp).
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.