PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

21633Parts Kit,centrifugal Pump

Name: 21633
SKU: 4320-01-459-0043

Hypro Llc · NSN 4320-01-459-0043 · FSC 4320 · No Item Name Available

Verified by PartsTable

NSN 4320-01-459-0043 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-459-0043. Primary manufacturer part number: 21633.

4320-01-459-0043 — No Item Name Available illustration

Features

Parts Kit,centrifugal Pump — FSC 4320
Nonsupply Items and Quantities: 15945 O-RING 1; 15952 RETAINING RING 1; 15955 ASSY-SEAL/SEAT 1; 15959 WASHER 1; 17000 IMPELLER-RUBBER 1; 17612 CARTON-C 1; 18271 CAM 1; 18441 ASSY-PIN/PLATE 1; 18742 PLATE-COVER-SS 1; 19210 CAP-RUBBER 1; 19667 KEY 1; 19712 O-RING 1; 19714 CAMSCREW 1; 21525 O-RING 2
1 verified cross-reference
Primary manufacturer: Hypro Llc

Applications

Fluid transfer and circulation
Cooling system maintenance
Industrial process pumping

General Description

The Parts Kit,centrifugal Pump, cataloged under National Stock Number 4320-01-459-0043, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hypro Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-459-0043
Primary Part Number	21633
Item Name	Parts Kit,centrifugal Pump
FSC / FSG	4320 / 43 — No Item Name Available
Manufacturer	Hypro Llc
Status	ACTIVE
Nonsupply Items and Quantities	15945 O-RING 1; 15952 RETAINING RING 1; 15955 ASSY-SEAL/SEAT 1; 15959 WASHER 1; 17000 IMPELLER-RUBBER 1; 17612 CARTON-C 1; 18271 CAM 1; 18441 ASSY-PIN/PLATE 1; 18742 PLATE-COVER-SS 1; 19210 CAP-RUBBER 1; 19667 KEY 1; 19712 O-RING 1; 19714 CAMSCREW 1; 21525 O-RING 2

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 9

5310-00-011-4618 INTERCHANGEABLE

Washer,lock

3110-00-101-10045EX13 INTERCHANGEABLE

Cone and Rollers,tapered Roller

Oshkosh Defense Llc

4820-00-135-54702680210 INTERCHANGEABLE

Valve,check

Parker Hannifin Corporation Div Aerospace Group Headquarters

5330-00-285-1332 INTERCHANGEABLE

Seal,plain Encased

6610-00-544-554821633 INTERCHANGEABLE

Indicator,miniature

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems

9540-01-072-0175 INTERCHANGEABLE

Beam,structural

6105-01-211-000621633 INTERCHANGEABLE

Stator,motor

Ontic Engineering & Manufacturing, Inc Dba Ontic Us

3950-01-257-073221633-3187 INTERCHANGEABLE

Winch,drum,power Operated

Calgon Carbon Uv Technologies Llc Dba Hyde Marine

5340-01-327-921521633 INTERCHANGEABLE

Disk,solid,plain

Parker Hannifin Corporation Div Hydraulic Systems Division

Cross-Reference Index

Part Number	Manufacturer
21633 PRIMARY	Hypro Llc (USA)

Related Parts

5310-00-011-4618INTERCHANGEABLE

WASHER,LOCK

3110-00-101-1004INTERCHANGEABLE

CONE AND ROLLERS,TAPERED ROLLER

5EX13

4820-00-135-5470INTERCHANGEABLE

VALVE,CHECK

2680210

5330-00-285-1332INTERCHANGEABLE

SEAL,PLAIN ENCASED

6610-00-544-5548INTERCHANGEABLE

INDICATOR,MINIATURE

21633

9540-01-072-0175INTERCHANGEABLE

BEAM,STRUCTURAL

6105-01-211-0006INTERCHANGEABLE

STATOR,MOTOR

21633

3950-01-257-0732INTERCHANGEABLE

WINCH,DRUM,POWER OPERATED

21633-3187

5340-01-327-9215INTERCHANGEABLE

DISK,SOLID,PLAIN

21633

Frequently Asked Questions

What is NSN 4320-01-459-0043?

NSN 4320-01-459-0043 is a Parts Kit,centrifugal Pump, manufactured by Hypro Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-459-0043?

NSN 4320-01-459-0043 has 1 cross-referenced part number: 21633 (Hypro Llc).

What NSN replaces 4320-01-459-0043?

There are 9 known substitutes for 4320-01-459-0043: 5310-00-011-4618, 3110-00-101-1004, 4820-00-135-5470 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21633?

Key specifications for 21633: Nonsupply Items and Quantities: 15945 O-RING 1; 15952 RETAINING RING 1; 15955 ASSY-SEAL/SEAT 1; 15959 WASHER 1; 17000 IMPELLER-RUBBER 1; 17612 CARTON-C 1; 18271 CAM 1; 18441 ASSY-PIN/PLATE 1; 18742 PLATE-COVER-SS 1; 19210 CAP-RUBBER 1; 19667 KEY 1; 19712 O-RING 1; 19714 CAMSCREW 1; 21525 O-RING 2; End Item Identification: MAIN PROPULSION ENGINE ONBOARD 49 FT BUSL COAST GUARD BOATS FT. 2 total characteristics are documented in the Federal Logistics Information System.

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

PartsTable Design LLC · partstable.com