The O-Ring, cataloged under National Stock Number 5331-01-393-8034, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Greene Tweed & Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-393-8034 |
| Primary Part Number | M0190-01400 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Greene Tweed & Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.90 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 14.00 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 901C5-987 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| 901C5-987 | Greene Tweed & Co Inc (USA) |
| M0190-01400 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| M0190-01400 PRIMARY | Greene Tweed & Co Inc (USA) |
| Reference | Meaning |
|---|---|
| M0190-01400 | 5/9 Secondary reference Palmetto Inc |
| 10343994 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 901C5-987 | 5/9 Secondary reference Palmetto Inc |
NSN 5331-01-393-8034 is a O-Ring, manufactured by Greene Tweed & Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-393-8034 has 4 manufacturer part numbers on file: 901C5-987 (Leonardo Spa Helicopters Division - Production Site), 901C5-987 (Greene Tweed & Co Inc), M0190-01400 (Leonardo Spa Helicopters Division - Production Site), M0190-01400 (Greene Tweed & Co Inc).
Key specifications for M0190-01400: Cross-Sectional Height: 1.90 MILLIMETERS NOMINAL MM; Center Hole Diameter: 14.00 MILLIMETERS NOMINAL MM; Material: RUBBER. 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.