The Piston,valve, cataloged under National Stock Number 4810-01-194-4135, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-194-4135 |
| Primary Part Number | 6002-105 ITEM 158 |
| Item Name | Piston,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6002-105 ITEM 158 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 515-4457068 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 515-4457068 ITEM 158 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4810-01-194-4135 is a Piston,valve, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-194-4135 has 1 manufacturer part number on file: 6002-105 ITEM 158 (Huntington Ingalls Inc Div Newport News Shipbuilding).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-194-6956, 3040-01-197-2114. Verify interchangeability with system specifications before substitution.
Key specifications for 6002-105 ITEM 158: Special Features: NICKEL ALLOY; 16.093 IN. LG; 2.990 IN. DIA MAX; 1.250 IN. ID; THD 1.750-16 UN-3A A. 0 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 4810-01-194-4135 has DEMIL Code B. 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.