The Liner,valve, cataloged under National Stock Number 4820-01-301-0392, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-301-0392 |
| Primary Part Number | 3435-01 |
| Item Name | Liner,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Lawler Manufacturing Company, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE; 3.500 IN. O/A DIA; 1.938 IN. O/A H; 2.750 IN. ID 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 |
|---|---|
| 817-D-16 | Lawler Manufacturing Company, Inc. (USA) |
| 3435-01 PRIMARY | Lawler Manufacturing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1751601 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 817-D | D/9 Drawing number reference only Lawler Manufacturing Company, Inc. |
| 836-D | 5/9 Secondary reference Lawler Manufacturing Company, Inc. |
NSN 4820-01-301-0392 is a Liner,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-301-0392 has 2 manufacturer part numbers on file: 817-D-16 (Lawler Manufacturing Company, Inc.), 3435-01 (Lawler Manufacturing Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6840-01-425-8232. Verify interchangeability with system specifications before substitution.
Key specifications for 3435-01: General Characteristics Item Description: BRONZE; 3.500 IN. O/A DIA; 1.938 IN. O/A H; 2.750 IN. ID IN; End Item Identification: LAWLER TYPE 2701 2-1/2 IN. REDUCING VALVE 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.