The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-353-0485, 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 1 specification, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-353-0485 |
| Primary Part Number | 233794 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems |
| Status | ACTIVE |
| Outside Diameter | 3.688 INCHES NOMINAL IN |
| 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 |
|---|---|
| 137143R1 | Komatsu America Corp. (USA) |
| 21JRV46 | Oshkosh Defense Llc (USA) |
| 233794 PRIMARY | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| 232070 | Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA) |
| 15528P11 | Taylor Machine Works Inc (USA) |
| 232070 | Heil Environmental Industries (USA) |
| 7417279 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 21JRV46 | 5/9 Secondary reference Oshkosh Corp |
| 137143R1 | 5/9 Secondary reference U.S. Government activity |
| P-18489 | 5/9 Secondary reference Athey Products Corp |
| 137143R1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 4820-00-353-0485 is a Diaphragm,valve,flat, manufactured by Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-353-0485 has 7 manufacturer part numbers on file: 137143R1 (Komatsu America Corp.), 21JRV46 (Oshkosh Defense Llc), 233794 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), 232070 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems), 15528P11 (Taylor Machine Works Inc) and 2 more.
4 possible matches (shared part number, not a government interchangeability claim): 5331-01-414-3648, 6675-01-482-8570, 6150-01-508-6256. Verify interchangeability with system specifications before substitution.
Key specifications for 233794: Outside Diameter: 3.688 INCHES NOMINAL IN. 1 specification is 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.