The Valve,safety Relief, cataloged under National Stock Number 4820-00-166-4262, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-166-4262 |
| Primary Part Number | 801831 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 2 NUT AND 1 COVER |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | ANGLE |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.125 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | NICKEL ALLOY BODY |
| Thread Series Designator | NPTF ALL ENDS |
| 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 |
|---|---|
| 801831 PRIMARY | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| 121795B PRIMARY | Oshkosh Defense Llc (USA) |
| L14818 | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| 279197 | 5/9 Secondary reference Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
| 121795B | 5/9 Secondary reference Oshkosh Corp |
| 1217958 | 5/9 Secondary reference Oshkosh Corp |
NSN 4820-00-166-4262 is a Valve,safety Relief, manufactured by Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-166-4262 has 3 manufacturer part numbers on file: 801831 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), 121795B (Oshkosh Defense Llc), L14818 (Cnh Industrial America Llc Dba Cnh America).
2 possible matches (shared part number, not a government interchangeability claim): 5315-00-498-4998, 3110-01-507-2596. Verify interchangeability with system specifications before substitution.
Key specifications for 801831: Flow Control Device: DISK; Furnished Items and Quantity: 2 NUT AND 1 COVER; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 12 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.