The Valve,safety Relief, cataloged under National Stock Number 4820-01-440-1884, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Amz Alabama Inc.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-440-1884 |
| Primary Part Number | 12364610-11 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Minimum Operating Temp | -25.000 FAHRENHEIT DEGF |
| Operating Pressure | 4200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Adjustable Pressure Range | +1575.0 TO 1675.0 POUNDS PER SQUARE INCH LBS |
| Maximum Operating Temp | 115.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| 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 |
|---|---|
| 12364610-11 | Amz Alabama Inc. (USA) |
| 12364610-11 | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| RDH103F50 | 3/2 Design control — primary reference U.S. Government activity |
| RD103F35 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| 12364610 | D/9 Drawing number reference only Bae Systems Land & Armaments L.p. |
NSN 4820-01-440-1884 is a Valve,safety Relief, manufactured by Amz Alabama Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-1884 has 2 manufacturer part numbers on file: 12364610-11 (Amz Alabama Inc.), 12364610-11 (Bae Systems Land & Armaments L.p.).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-440-1996, 4820-01-440-2334, 4820-01-465-3869. Verify interchangeability with system specifications before substitution.
Key specifications for 12364610-11: Minimum Operating Temp: -25.000 FAHRENHEIT DEGF; Operating Pressure: 4200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Adjustable Pressure Range: +1575.0 TO 1675.0 POUNDS PER SQUARE INCH LBS; Maximum Operating Temp: 115.0 FAHRENHEIT SINGLE RESPONSE DEGF. 6 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.