The O-Ring, cataloged under National Stock Number 5331-01-453-8140, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-453-8140 |
| Primary Part Number | 6407529 ITEM 6 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-83485, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 27.880 INCHES MINIMUM AND 28.120 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 6407529 ITEM 6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 754-6407600 ITEM 1 | 5/9 Secondary reference Naval Sea Systems Command |
| 754-6407529 ITEM 6 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5331-01-453-8140 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-453-8140 has 1 manufacturer part number on file: 6407529 ITEM 6 (Naval Sea Systems Command).
Key specifications for 6407529 ITEM 6: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-83485, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE; Center Hole Diameter: 27.880 INCHES MINIMUM AND 28.120 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 4 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.