NSN 4820-01-459-9741 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-459-9741. Manufacturer of record part number: 1641-D.
Also searched as4820-01-459-9741 ·
4820014599741 ·
NIIN 014599741 ·
01-459-9741 ·
FSC 4820 Valves, Nonpowered · CAGE 75545 · 1641-D
Manufacturer of record: Lawler Manufacturing Company, Inc.
Identification
NSN: 4820-01-459-9741
NIIN: 014599741
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1641-D
Manufacturer: Lawler Manufacturing Company, Inc.
General Description
The Valve Assembly, cataloged under National Stock Number 4820-01-459-9741, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Lawler Manufacturing Company, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-459-9741?
NSN 4820-01-459-9741 is a Valve Assembly, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-459-9741?
NSN 4820-01-459-9741 has 1 manufacturer part number on file: 1641-D (Lawler Manufacturing Company, Inc.).
What are the specifications of 1641-D?
Key specifications for 1641-D: Special Features: NEXT HIGHER ASSY VALVE TEMP RE; End Item Identification: W/S CODE NIMITZ CLASS CVN. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-459-9741 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 4820-01-459-9741?
NSN 4820-01-459-9741 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.