The O-Ring, cataloged under National Stock Number 5331-01-091-7780, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Newdell Company, the Dba Ladish Valves. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Newdell Company, the Dba Ladish Valves (CAGE 11661) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-091-7780 |
| Primary Part Number | C3007-507-ATV |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Newdell Company, the Dba Ladish Valves |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| C3007-507-ATV PRIMARY | Newdell Company, the Dba Ladish Valves (USA) |
| Reference | Meaning |
|---|---|
| C3007-507-034 | 5/9 Secondary reference Newdell Company, the Dba Ladish Valves |
| A-3007-507 PT C3007-507-034 | 5/9 Secondary reference Newdell Company, the Dba Ladish Valves |
NSN 5331-01-091-7780 is a O-Ring, manufactured by Newdell Company, the Dba Ladish Valves, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-091-7780 has 1 manufacturer part number on file: C3007-507-ATV (Newdell Company, the Dba Ladish Valves).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-378-3416. Verify interchangeability with system specifications before substitution.
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.