The O-Ring, cataloged under National Stock Number 5331-01-444-0448, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is R & M Energy Systems Tomball P. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-444-0448 |
| Primary Part Number | 52267290 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | R & M Energy Systems Tomball P |
| Status | ACTIVE |
| Cross-Sectional Height | 0.250 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| 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 |
|---|---|
| 52267290 PRIMARY | R & M Energy Systems Tomball P (USA) |
| Reference | Meaning |
|---|---|
| 3226729 | 5/9 Secondary reference Huber J M Corp Flow Control Div |
| 3218118 IT14 | 5/9 Secondary reference Huber J M Corp Flow Control Div |
NSN 5331-01-444-0448 is a O-Ring, manufactured by R & M Energy Systems Tomball P, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-444-0448 has 1 manufacturer part number on file: 52267290 (R & M Energy Systems Tomball P).
Key specifications for 52267290: Cross-Sectional Height: 0.250 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM. 2 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.