Ball, Check 4820-01-545-5514 NSN 4820-01-545-5514 · NIIN 015455514 · Part number KT-4571-5-1
The Entwistle Company Llc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 20722
NSN 4820-01-545-5514 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-545-5514. Manufacturer of record part number: KT-4571-5-1 .
Also searched as
4820-01-545-5514 ·
4820015455514 ·
NIIN 015455514 ·
01-545-5514 ·
FSC 4820 Valves, Nonpowered · CAGE 20722 · KT-4571-5-1 · KT-4571-5 ITEM 1
Nearby stock numbers
← 4820-01-545-5513 Valve Assembly
·
4820-01-545-5517 Ball, Check →
4820-01-545-5514 — Valves, Nonpowered
Features
Ball,check — FSC 4820 2 manufacturer part numbers on file Manufacturer of record: The Entwistle Company Llc
Identification
NSN: 4820-01-545-5514
NIIN: 015455514
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: KT-4571-5-1
Manufacturer: The Entwistle Company Llc
General Description
The Ball,check, cataloged under National Stock Number 4820-01-545-5514, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Entwistle Company Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-01-545-5514 Primary Part Number KT-4571-5-1 Item Name Ball,check FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer The Entwistle Company Llc 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
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
Frequently Asked Questions
What is NSN 4820-01-545-5514?
NSN 4820-01-545-5514 is a Ball,check, manufactured by The Entwistle Company Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-545-5514?
NSN 4820-01-545-5514 has 2 manufacturer part numbers on file: KT-4571-5 ITEM 1 (The Entwistle Company Llc), KT-4571-5-1 (The Entwistle Company Llc).
What are the specifications of KT-4571-5-1?
Key specifications for KT-4571-5-1: End Item Identification: PUMP ASSY HND. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-545-5514 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