The Valve,pilot, cataloged under National Stock Number 4820-01-441-4514, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Chemetron Fire Systems. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-441-4514 |
| Primary Part Number | 10610668 |
| Item Name | Valve,pilot |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Chemetron Fire Systems |
| Status | ACTIVE |
| General Characteristics Item Description | PNEUMATIC OPERATED,300-1000 PSI;3-WAY FLOW;4 PORTS;HEX NUT BOTH ENDS;ORIFICE AREA 0.098 SQ IN. |
| 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 |
|---|---|
| 10610668 PRIMARY | Chemetron Fire Systems (USA) |
| Reference | Meaning |
|---|---|
| 10610668 | 3/9 Design control — primary reference Badger Fire Protection Inc |
| 46316 | D/9 Drawing number reference only Badger Fire Protection Inc |
NSN 4820-01-441-4514 is a Valve,pilot, manufactured by Chemetron Fire Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-441-4514 has 1 manufacturer part number on file: 10610668 (Chemetron Fire Systems).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-495-4130. Verify interchangeability with system specifications before substitution.
Key specifications for 10610668: General Characteristics Item Description: PNEUMATIC OPERATED,300-1000 PSI;3-WAY FLOW;4 PORTS;HEX NUT BOTH ENDS;ORIFICE AREA 0.098 SQ 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.