The O-Ring, cataloged under National Stock Number 5331-01-550-3404, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-550-3404 |
| Primary Part Number | 12991297-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Cross-Sectional Height | 0.670 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Center Hole Diameter | 10.250 INCHES MINIMUM AND 10.360 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 12991297-1 | Valley Seal Company Dba Valley Seal Co (USA) |
| 12991297-1 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 12991297-1 | 5/2 Secondary reference U.S. Government activity |
| 5331015503404 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5331-01-550-3404 is a O-Ring, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-550-3404 has 2 manufacturer part numbers on file: 12991297-1 (Valley Seal Company Dba Valley Seal Co), 12991297-1 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12991297-1: Cross-Sectional Height: 0.670 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN; Center Hole Diameter: 10.250 INCHES MINIMUM AND 10.360 INCHES MAXIMUM IN; End Item Identification: 5855-01-541-8032, THERMAL IMAGING SYSTEM. 2 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.