Valve, Stop-Check 4820-01-454-5576 NSN 4820-01-454-5576 · NIIN 014545576 · Part number B1221E 1IN
Hunt Valve Company, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 11859
NSN 4820-01-454-5576 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-454-5576. Manufacturer of record part number: B1221E 1IN .
Also searched as
4820-01-454-5576 ·
4820014545576 ·
NIIN 014545576 ·
01-454-5576 ·
FSC 4820 Valves, Nonpowered · CAGE 11859 · B1221E 1IN
Nearby stock numbers
← 4820-01-454-5428 Disk, Valve
·
4820-01-454-5609 Valve, Globe →
4820-01-454-5576 — Valves, Nonpowered
Features
Valve,stop-Check — FSC 4820 1 manufacturer part number on file Manufacturer of record: Hunt Valve Company, Inc.
Identification
NSN: 4820-01-454-5576
NIIN: 014545576
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B1221E 1IN
Manufacturer: Hunt Valve Company, Inc.
General Description
The Valve,stop-Check, cataloged under National Stock Number 4820-01-454-5576, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter Value NSN 4820-01-454-5576 Primary Part Number B1221E 1IN Item Name Valve,stop-Check FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Hunt Valve Company, Inc. Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
B1221E 1IN PRIMARY Hunt Valve Company, Inc. (USA)
Reference documents
Reference Meaning
B1221E 1IN
3/9 Design control — primary reference Pima Valve, Llc
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 4820-01-454-5576?
NSN 4820-01-454-5576 is a Valve,stop-Check, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-454-5576?
NSN 4820-01-454-5576 has 1 manufacturer part number on file: B1221E 1IN (Hunt Valve Company, Inc.).
What are the specifications of B1221E 1IN?
Key specifications for B1221E 1IN: End Item Identification: VALVE STP CHK GLB. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-454-5576 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.
PartsTable Design LLC · partstable.com