NSN 4320-01-451-8621 · NIIN 014518621 · Part number 1W5664
Caterpillar Inc Div Caterpillar Defense · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 11083
Government record, cited
NSN 4320-01-451-8621 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-451-8621. Manufacturer of record part number: 1W5664.
Also searched as4320-01-451-8621 ·
4320014518621 ·
NIIN 014518621 ·
01-451-8621 ·
FSC 4320 Power and Hand Pumps · CAGE 11083 · 1W5664
Nearby stock numbers← 4320-01-451-8617 Parts Kit, Rotary Pump
·
4320-01-451-8626 Parts Kit, Rotary Pump →
Features
Parts Kit,centrifugal Pump — FSC 4320
Component Quantity: 4
End Item Source: 11083
End Item Name: PUMP, CENTRIFUGAL
Nonsupply Items and Quantities: 11083 4P5926 KEY, WOODRUFF 1; 11083 8T2944 O-RING SEAL 1; 11083 7E0321 IMPELLER 1; 11083 4P5927 CAP 1
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 4320-01-451-8621
NIIN: 014518621
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 1W5664
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Parts Kit,centrifugal Pump, cataloged under National Stock Number 4320-01-451-8621, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4320-01-451-8621
Primary Part Number
1W5664
Item Name
Parts Kit,centrifugal Pump
FSC / FSG
4320 / 43 — Power and Hand Pumps
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Component Quantity
4
End Item Source
11083
End Item Name
PUMP, CENTRIFUGAL
Nonsupply Items and Quantities
11083 4P5926 KEY, WOODRUFF 1; 11083 8T2944 O-RING SEAL 1; 11083 7E0321 IMPELLER 1; 11083 4P5927 CAP 1
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633
4320-00-001-1633 · Item name not on file
4320-00-001-2628
RETAINER AND PIN
4320-00-001-2629
HOUSING AND PIN
4320-00-001-2630
PUMP,CENTRIFUGAL
4320-00-001-2631
4320-00-001-2631 · Item name not on file
4320-00-001-2632
4320-00-001-2632 · Item name not on file
4320-00-001-3377
4320-00-001-3377 · Item name not on file
4320-00-001-3384
4320-00-001-3384 · Item name not on file
Frequently Asked Questions
What is NSN 4320-01-451-8621?
NSN 4320-01-451-8621 is a Parts Kit,centrifugal Pump, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4320, Power and Hand Pumps. Status: active.
What part numbers are listed for NSN 4320-01-451-8621?
NSN 4320-01-451-8621 has 1 manufacturer part number on file: 1W5664 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 1W5664?
Key specifications for 1W5664: Component Quantity: 4; End Item Source: 11083; End Item Name: PUMP, CENTRIFUGAL; Nonsupply Items and Quantities: 11083 4P5926 KEY, WOODRUFF 1; 11083 8T2944 O-RING SEAL 1; 11083 7E0321 IMPELLER 1; 11083 4P5927 CAP 1. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4320-01-451-8621 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.