The Stem,fluid Valve, cataloged under National Stock Number 4820-01-310-4295, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tyco Fire Products Lp. 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 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 | 4820-01-310-4295 |
| Primary Part Number | 101-1640 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tyco Fire Products Lp |
| Status | ACTIVE |
| Largest Outside Diameter | 0.688 INCHES NOMINAL IN |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 101-1640 PRIMARY | Tyco Fire Products Lp (USA) |
NSN 4820-01-310-4295 is a Stem,fluid Valve, manufactured by Tyco Fire Products Lp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-310-4295 has 1 manufacturer part number on file: 101-1640 (Tyco Fire Products Lp).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-690-0653. Verify interchangeability with system specifications before substitution.
Key specifications for 101-1640: Largest Outside Diameter: 0.688 INCHES NOMINAL IN; Overall Length: 3.078 INCHES NOMINAL IN; Material: STEEL COMP 304. 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.