The Valve,safety Relief, cataloged under National Stock Number 4820-01-412-6823, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Hiller Companies Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-412-6823 |
| Primary Part Number | FP100-VG1341 ITEM 4 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Hiller Companies Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Disk Loading Method | SPRING |
| Media for Which Designed | CARBON DIOXIDE SINGLE RESPONSE |
| Opening Pressure Setting | 140.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| FP100-VG1341 ITEM 4 PRIMARY | The Hiller Companies Llc (USA) |
| Reference | Meaning |
|---|---|
| FP100-VG1341 | D/9 Drawing number reference only The Hiller Companies Llc |
NSN 4820-01-412-6823 is a Valve,safety Relief, manufactured by The Hiller Companies Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-412-6823 has 1 manufacturer part number on file: FP100-VG1341 ITEM 4 (The Hiller Companies Llc).
3 possible matches (shared part number, not a government interchangeability claim): 2010-01-413-3394, 4820-01-413-8258, 4720-01-414-2288. Verify interchangeability with system specifications before substitution.
Key specifications for FP100-VG1341 ITEM 4: Flow Control Device: DISK; Disk Loading Method: SPRING; Media for Which Designed: CARBON DIOXIDE SINGLE RESPONSE; Opening Pressure Setting: 140.0 POUNDS PER SQUARE INCH LBS. 5 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.