The O-Ring, cataloged under National Stock Number 5331-01-416-4001, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Container Research Corp Dba Container Research Corp Div Containr Research Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-416-4001 |
| Primary Part Number | MS28775-440 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Container Research Corp Dba Container Research Corp Div Containr Research Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| MS28775-440 PRIMARY | Container Research Corp Dba Container Research Corp Div Containr Research Corporation (USA) |
| Reference | Meaning |
|---|---|
| REPAIR PART | 5/1 Secondary reference U.S. Government activity |
NSN 5331-01-416-4001 is a O-Ring, manufactured by Container Research Corp Dba Container Research Corp Div Containr Research Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-416-4001 has 1 manufacturer part number on file: MS28775-440 (Container Research Corp Dba Container Research Corp Div Containr Research Corporation).
Key specifications for MS28775-440: Special Features: END ITEM APPLICATION SURGICAL INSTRUMENT AND DRESSING; MODEL 546E001; End Item Identification: 6530-01-306-9510. 0 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.