The O-Ring, cataloged under National Stock Number 5331-01-407-2337, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-407-2337 |
| Primary Part Number | S9028A905 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Boeing Defence Australia Ltd |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Hardness Rating | 60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | EMS315 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.409 INCHES MINIMUM AND 0.419 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 | X |
NSN 5331-01-407-2337 is a O-Ring, manufactured by Boeing Defence Australia Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-407-2337 has 2 manufacturer part numbers on file: S9028A905 (Boeing Defence Australia Ltd), S9028A905 (Boeing Defence Australia Ltd Div Defense, Space & Security).
Key specifications for S9028A905: Temp Rating: -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: EMS315 ASSN STD SINGLE MATERIAL RESPONSE. 6 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.