The Guide Stud Set, cataloged under National Stock Number 5120-01-249-9838, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Bosch Automotive Service Solutions Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-249-9838 |
| Primary Part Number | J28511-A |
| Item Name | Guide Stud Set |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Bosch Automotive Service Solutions Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | FOR CYLINDER HEAD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5120-01-249-9838 is a Guide Stud Set, manufactured by Bosch Automotive Service Solutions Inc., classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-249-9838 has 2 manufacturer part numbers on file: J-28511-C (Bosch Automotive Service Solutions Inc.), J28511-A (Bosch Automotive Service Solutions Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2815-01-486-7892. Verify interchangeability with system specifications before substitution.
Key specifications for J28511-A: General Characteristics Item Description: FOR CYLINDER HEAD; End Item Identification: DETROIT DIESEL SERIES 149 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.