The O-Ring, cataloged under National Stock Number 5331-01-652-3567, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-652-3567 |
| Primary Part Number | MC-012605 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.818 INCHES NOMINAL IN |
| Center Hole Diameter | 0.644 INCHES NOMINAL IN |
| 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 |
|---|---|
| MC-012605 PRIMARY | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA) |
| 9557K443 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| MC-001370 ITEM 12 | 5/9 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| MC-001370 | D/9 Drawing number reference only Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
NSN 5331-01-652-3567 is a O-Ring, manufactured by Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-652-3567 has 2 manufacturer part numbers on file: MC-012605 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 9557K443 (Mcmaster-Carr Supply Co).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-652-4421, 5961-01-652-4428. Verify interchangeability with system specifications before substitution.
Key specifications for MC-012605: Cross-Sectional Height: 0.818 INCHES NOMINAL IN; Center Hole Diameter: 0.644 INCHES NOMINAL IN; 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.