The Ring,valve Piston, cataloged under National Stock Number 4810-01-499-8099, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-499-8099 |
| Primary Part Number | 342-7107384-6 |
| Item Name | Ring,valve Piston |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Material | NICKEL |
| 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 |
|---|---|
| 342-7107384-6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7107384 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4810-01-499-8099 is a Ring,valve Piston, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-499-8099 has 1 manufacturer part number on file: 342-7107384-6 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 4810-01-589-4941, 4810-01-589-4946, 5340-01-719-0933. Verify interchangeability with system specifications before substitution.
Key specifications for 342-7107384-6: Overall Height: 1.344 INCHES MINIMUM AND 1.374 INCHES MAXIMUM IN; Overall Diameter: 4.000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: STEM RETAINER SCREW; End Item Identification: SNORKEL INDUCTION MAST HYDRAULIC HEAD VALVE. 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.
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.