The O-Ring, cataloged under National Stock Number 5331-00-641-1245, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-00-641-1245 |
| Primary Part Number | 120726D |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-00-641-1245 is a O-Ring, manufactured by Dresser, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-641-1245 has 3 manufacturer part numbers on file: 120726A (Dresser, Llc), 120726D (Dresser, Llc), 120726C (Dresser, Llc).
Key specifications for 120726D: Cross-Sectional Height: 0.163 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN; Center Hole Diameter: 4.595 INCHES MINIMUM AND 4.625 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.