The O-Ring, cataloged under National Stock Number 5331-01-026-0400, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-026-0400 |
| Primary Part Number | 26-370-5505 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Mission Systems Davenport Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.375 INCHES NOMINAL IN |
| Hardness Rating | 40.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MS-7270 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 34.500 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 |
|---|---|
| 26-370-5505 PRIMARY | Mission Systems Davenport Inc. (USA) |
| Reference | Meaning |
|---|---|
| 26-370-5505 | 5/9 Secondary reference Gps Svcs |
NSN 5331-01-026-0400 is a O-Ring, manufactured by Mission Systems Davenport Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-026-0400 has 1 manufacturer part number on file: 26-370-5505 (Mission Systems Davenport Inc.).
Key specifications for 26-370-5505: Cross-Sectional Height: 0.375 INCHES NOMINAL IN; Hardness Rating: 40.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: MS-7270 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 34.500 INCHES NOMINAL IN. 5 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.