The Seal Assembly, cataloged under National Stock Number 4320-01-654-4425, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Preci-Manufacturing, Incorporated. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4320-01-654-4425 |
| Primary Part Number | 6878927-2 |
| Item Name | Seal Assembly |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Preci-Manufacturing, Incorporated |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 6878927-2 | Preci-Manufacturing, Incorporated (USA) |
| 6878927-2SQ | Naval Inventory Control Point Mechanicsburg (USA) |
| 6878927-2 | Niantic Tool, Inc. Dba Niantic Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 6878927-2 | 3/1 Design control — primary reference Naval Sea Systems Command |
| 6878927-2 | 5/9 Secondary reference Granite State Casting |
NSN 4320-01-654-4425 is a Seal Assembly, manufactured by Preci-Manufacturing, Incorporated, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-654-4425 has 3 manufacturer part numbers on file: 6878927-2 (Preci-Manufacturing, Incorporated), 6878927-2SQ (Naval Inventory Control Point Mechanicsburg), 6878927-2 (Niantic Tool, Inc. Dba Niantic Tool Co).
Key specifications for 6878927-2: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION. 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.
NSN 4320-01-654-4425 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.