The O-Ring, cataloged under National Stock Number 5331-01-356-7219, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Bma Buizza Mazzei Agency Srl. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-356-7219 |
| Primary Part Number | A3144316 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Bma Buizza Mazzei Agency Srl |
| Status | ACTIVE |
| Cross-Sectional Height | 0.051 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.103 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| A3144316 | Bma Buizza Mazzei Agency Srl (ITA) |
| Reference | Meaning |
|---|---|
| A3144316 | 3/2 Design control — primary reference U.S. Government activity |
| 447144018909 | 5/9 Secondary reference Ncb Hungary (honvedsegi Egyseges Termekkod) |
| A3144316 | 5/9 Secondary reference Combat Kereskedelmi Kft. Combat Trade Company |
NSN 5331-01-356-7219 is a O-Ring, manufactured by Bma Buizza Mazzei Agency Srl, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-356-7219 has 1 manufacturer part number on file: A3144316 (Bma Buizza Mazzei Agency Srl).
Key specifications for A3144316: Cross-Sectional Height: 0.051 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN; Center Hole Diameter: 0.103 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.