The O-Ring, cataloged under National Stock Number 5331-01-478-0043, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Fad Pennsylvania Inc Dba the Titus Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-478-0043 |
| Primary Part Number | T11906 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Fad Pennsylvania Inc Dba the Titus Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.210 INCHES NOMINAL IN |
| Center Hole Diameter | 3.975 INCHES NOMINAL 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 |
|---|---|
| T11906 PRIMARY | Fad Pennsylvania Inc Dba the Titus Co (USA) |
| Reference | Meaning |
|---|---|
| 99-1103-5-D1 PC13 | 5/9 Secondary reference Fad Pennsylvania Inc Dba the Titus Co |
NSN 5331-01-478-0043 is a O-Ring, manufactured by Fad Pennsylvania Inc Dba the Titus Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-478-0043 has 1 manufacturer part number on file: T11906 (Fad Pennsylvania Inc Dba the Titus Co).
Key specifications for T11906: Cross-Sectional Height: 0.210 INCHES NOMINAL IN; Special Features: 0-RING IS A BS345 HIGH NITRILE;TEMP RANGE -30 DEG C TO 120 DEG C DEGC; Center Hole Diameter: 3.975 INCHES NOMINAL 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.