The Crankshaft,exhaust Valve, cataloged under National Stock Number 4810-01-151-3834, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-151-3834 |
| Item Name | Crankshaft,exhaust Valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; ONE END 2.248 IN. DIA 10 SPLINE; OTHER END 1/4 IN. DIA CENTER HOLE TAP 1/8-27 NPTF; O/A DIM. 8.000 IN. OD BY 12.000 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SSN637-501-2143837 | D/9 Drawing number reference only U.S. Government activity |
| 77643-93X3 | D/9 Drawing number reference only U.S. Government activity |
| 77643-93X3 PIECE 1 | 3/2 Design control — primary reference U.S. Government activity |
| SSN637-501-2143837 PIECE 1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-151-3834 is a Crankshaft,exhaust Valve, classified under FSC 4810, Valves, Powered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-151-6007, 4730-01-189-6594. Verify interchangeability with system specifications before substitution.
Key specifications for 4810-01-151-3834: General Characteristics Item Description: STEEL; ONE END 2.248 IN. DIA 10 SPLINE; OTHER END 1/4 IN. DIA CENTER HOLE TAP 1/8-27 NPTF; O/A DIM. 8.000 IN. OD BY 12.000 IN. LG IN. 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.