The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-233-3441, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-233-3441 |
| Primary Part Number | 2AD410 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Component Quantity | 4 |
| Supply Items and Quantities | O-RINGS BUNA-N 2; BACK-UPS 2 |
| 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 |
|---|---|
| 2AD410 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 520-480101 | 5/9 Secondary reference U.S. Government activity |
| 2AD410 | 5/9 Secondary reference Oshkosh Corp |
| 520-480/01 | 3/2 Design control — primary reference U.S. Government activity |
| SK-16-2 | 5/9 Secondary reference Modular Controls Corp |
| 235054 | 5/9 Secondary reference Allied Systems Company Dba Allied Systems Co |
NSN 4820-01-233-3441 is a Parts Kit,safety Relief Valve, manufactured by Oshkosh Defense Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-233-3441 has 1 manufacturer part number on file: 2AD410 (Oshkosh Defense Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-481-6843, 4820-01-623-5665. Verify interchangeability with system specifications before substitution.
Key specifications for 2AD410: Component Quantity: 4; Supply Items and Quantities: O-RINGS BUNA-N 2; BACK-UPS 2; End Item Identification: 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM). 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.