PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-15559Locking Cup,pump

Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc · NSN 4320-00-216-6579 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-216-6579 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-216-6579. Primary manufacturer part number: A-15559.
Features
  • Locking Cup,pump — FSC 4320
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Locking Cup,pump, cataloged under National Stock Number 4320-00-216-6579, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-216-6579
Primary Part NumberA-15559
Item NameLocking Cup,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerTeikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5945-00-760-3864 INTERCHANGEABLE
Solenoid,electrical
5995-01-062-141544-15559 INTERCHANGEABLE
Wiring Harness
Wheeler Fleet Solutions, Co.
5950-01-086-9236 INTERCHANGEABLE
Transformer,power
5945-01-113-18111115559 INTERCHANGEABLE
Solenoid,electrical
Borgwarner Pds (anderson), L.l.c.
2940-01-119-417115559 INTERCHANGEABLE
Filter Element,fluid
Westerbeke Corporation
5995-01-412-321015559 INTERCHANGEABLE
Cable Assembly,power,electrical
The First Electronics Corporation
4920-01-505-2251906-15559 INTERCHANGEABLE
Strap,al
Honeywell International Inc. Dba Honeywell Div Aerospace -Olathe Hums Div
Cross-Reference Index
Part NumberManufacturer
A-15559 Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc (USA)
15559 Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc (USA)
F-15502PC19-7 Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc (USA)
F15500PC19-7 Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc (USA)
Related Parts
5945-00-760-3864INTERCHANGEABLE
SOLENOID,ELECTRICAL
5995-01-062-1415INTERCHANGEABLE
WIRING HARNESS
44-15559
5950-01-086-9236INTERCHANGEABLE
TRANSFORMER,POWER
5945-01-113-1811INTERCHANGEABLE
SOLENOID,ELECTRICAL
1115559
2940-01-119-4171INTERCHANGEABLE
FILTER ELEMENT,FLUID
15559
5995-01-412-3210INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
15559
4920-01-505-2251INTERCHANGEABLE
STRAP,AL
906-15559

Frequently Asked Questions

What is NSN 4320-00-216-6579?

NSN 4320-00-216-6579 is a Locking Cup,pump, manufactured by Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-216-6579?

NSN 4320-00-216-6579 has 4 cross-referenced part numbers: A-15559 (Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc), 15559 (Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc), F-15502PC19-7 (Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc), F15500PC19-7 (Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc).

What NSN replaces 4320-00-216-6579?

There are 7 known substitutes for 4320-00-216-6579: 5945-00-760-3864, 5995-01-062-1415, 5950-01-086-9236 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-15559?

Key specifications for A-15559: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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