The Head,valve, cataloged under National Stock Number 4820-01-342-0634, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is DP Manufacturing Inc.. The record lists 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Head,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Oshkosh Defense Llc (CAGE 75Q65); Haldex Brake Products Corporation (CAGE 06721); DP Manufacturing Inc. (CAGE 0EJ14) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-342-0634 |
| Primary Part Number | N13440DR |
| Item Name | Head,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | DP Manufacturing Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 1HA236 | Oshkosh Defense Llc (USA) |
| N13440DR | Haldex Brake Products Corporation (USA) |
| N13440DR PRIMARY | DP Manufacturing Inc. (USA) |
| Reference | Meaning |
|---|---|
| N1340DR | 5/9 Secondary reference DP Manufacturing Inc. |
| 71036-G | 5/9 Secondary reference Haldex Brake Products Corporation |
| 1HA236 | 5/9 Secondary reference Oshkosh Corp |
| 71036 | 5/9 Secondary reference Haldex Brake Products Corporation |
NSN 4820-01-342-0634 is a Head,valve, manufactured by DP Manufacturing Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-342-0634 has 3 manufacturer part numbers on file: 1HA236 (Oshkosh Defense Llc), N13440DR (Haldex Brake Products Corporation), N13440DR (DP Manufacturing Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 3439-01-553-5003, 1990-01-693-5992. 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.
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.