The Inserter,seal, cataloged under National Stock Number 5120-00-159-8916, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Cummins Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5120-00-159-8916 |
| Primary Part Number | ST659 |
| Item Name | Inserter,seal |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Cummins Inc |
| Status | ACTIVE |
| Functional Description | USED TO PRESS CARBON FACE SEAL INTO WATER PUMP BODY |
| 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 |
|---|---|
| ST659 PRIMARY | Cummins Inc (USA) |
| Reference | Meaning |
|---|---|
| 00-159-8916 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5120-00-159-8916 is a Inserter,seal, manufactured by Cummins Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-159-8916 has 1 manufacturer part number on file: ST659 (Cummins Inc).
1 possible match (shared part number, not a government interchangeability claim): 5950-00-621-1816. Verify interchangeability with system specifications before substitution.
Key specifications for ST659: Functional Description: USED TO PRESS CARBON FACE SEAL INTO WATER PUMP BODY; End Item Identification: CUMMINS SERIES V28 ENGINES. 1 specification is 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.