The O-Ring, cataloged under National Stock Number 5331-01-658-8068, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Armor Metal Group Mason, Inc.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-658-8068 |
| Primary Part Number | PCM1025 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Armor Metal Group Mason, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.53 INCHES NOMINAL IN |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Center Hole Diameter | 0.91 INCHES NOMINAL 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 |
|---|---|
| PCM1025 PRIMARY | Armor Metal Group Mason, Inc. (USA) |
NSN 5331-01-658-8068 is a O-Ring, manufactured by Armor Metal Group Mason, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-658-8068 has 1 manufacturer part number on file: PCM1025 (Armor Metal Group Mason, Inc.).
Key specifications for PCM1025: Cross-Sectional Height: 0.53 INCHES NOMINAL IN; Outside Diameter: 1.375 INCHES NOMINAL IN; Center Hole Diameter: 0.91 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PACKING, VALVE. 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.