The Valve,safety Relief, cataloged under National Stock Number 4820-01-313-2809, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Brooks T J Co. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Jlg Industries, Inc. (CAGE 1YHH8); Brooks T J Co (CAGE 67089) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-313-2809 |
| Primary Part Number | DH33-8 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Brooks T J Co |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8205571 | Jlg Industries, Inc. (USA) |
| DH33-8 PRIMARY | Brooks T J Co (USA) |
| Reference | Meaning |
|---|---|
| 725033A | 5/9 Secondary reference Jarp Industries |
| 6600344 | D/9 Drawing number reference only Brooks T J Co |
| 6600344 | D/9 Drawing number reference only Trak International |
NSN 4820-01-313-2809 is a Valve,safety Relief, manufactured by Brooks T J Co, classified under FSC 4820, Valves, Nonpowered. Status: cancelled.
NSN 4820-01-313-2809 has 2 manufacturer part numbers on file: 8205571 (Jlg Industries, Inc.), DH33-8 (Brooks T J Co).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-487-2935. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4820-01-313-2809 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.