The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-132-4899, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Wheeler Fleet Solutions, Co.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-132-4899 |
| Primary Part Number | 685-68999 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Wheeler Fleet Solutions, Co. |
| Status | ACTIVE |
| Component Quantity | 7 |
| Supply Items and Quantities | O-RING 2; LOCKNUT 1; PISTON 1; SEAT 1; STEM 1; BACK-UP 1 |
| 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 |
|---|---|
| 685-68999 PRIMARY | Wheeler Fleet Solutions, Co. (USA) |
| Reference | Meaning |
|---|---|
| 68999 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| 68999 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 4820-01-132-4899 is a Parts Kit,safety Relief Valve, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-132-4899 has 1 manufacturer part number on file: 685-68999 (Wheeler Fleet Solutions, Co.).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-731-1375. Verify interchangeability with system specifications before substitution.
Key specifications for 685-68999: Component Quantity: 7; Supply Items and Quantities: O-RING 2; LOCKNUT 1; PISTON 1; SEAT 1; STEM 1; BACK-UP 1. 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.