NSN 4820-01-457-1623 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-457-1623. Manufacturer of record part number: ACV-1687 ASSY 101M-BP 4 IN.
Also searched as4820-01-457-1623 ·
4820014571623 ·
NIIN 014571623 ·
01-457-1623 ·
FSC 4820 Valves, Nonpowered · CAGE 76588 · ACV-1687 ASSY 101M-BP 4 IN · 101M-BP 4IN
Manufacturer of record: Core Industries Inc. Dba Mueller Steam Specialty
Identification
NSN: 4820-01-457-1623
NIIN: 014571623
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: ACV-1687 ASSY 101M-BP 4 IN
Manufacturer: Core Industries Inc. Dba Mueller Steam Specialty
General Description
The Valve,check, cataloged under National Stock Number 4820-01-457-1623, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Core Industries Inc. Dba Mueller Steam Specialty (USA)
Reference documents
Reference
Meaning
101M-BP 4IN
C/1Advisory reference — outside the item-of-supply concept
Core Industries Inc. Dba Mueller Steam Specialty
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
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
Related Parts in Valves
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
8171E-1/4HS2
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
D559A3M2
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 4820-01-457-1623?
NSN 4820-01-457-1623 is a Valve,check, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-457-1623?
NSN 4820-01-457-1623 has 1 manufacturer part number on file: ACV-1687 ASSY 101M-BP 4 IN (Core Industries Inc. Dba Mueller Steam Specialty).
What are the specifications of ACV-1687 ASSY 101M-BP 4 IN?
Key specifications for ACV-1687 ASSY 101M-BP 4 IN: End Item Identification: TARAWA CLASS LHA. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-457-1623 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.
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.