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PartsTable / COMPONENT / BS5-1638 PIECE 28
BS5-1638 PIECE 28 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The IMPELLER,PUMP,CENTRIFUGAL is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, length: 2.000 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: TUNGSTEN CARBIDE, hole_type: DRILLED, head_style: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-209-2918, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BS5-1638 PIECE 28
NSN: 4320-01-209-2918
FSC: 4320
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
shapeSTRAIGHT
length2.000 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialTUNGSTEN CARBIDE
hole_typeDRILLED
head_styleHEXAGON
body_length1.125 INCHES NOMINAL IN
head_height0.250 INCHES NOMINAL IN
thread_class2A A
hole_diameter0.081 INCHES NOMINAL IN
hole_quantity1
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
NSN4320-01-209-2918
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available IMPELLER,PUMP,CENTRIFUGAL TITLE COMPONENT PN BS5-1638 PIECE 28 MFR IMPELLER,PUMP,CENTRIFU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
RRF221Interchangeable
interchangeable cross-reference
interchangeable
A121Interchangeable
interchangeable cross-reference
interchangeable
A121-12-4-5-14RInterchangeable
interchangeable cross-reference
interchangeable
3009Interchangeable
interchangeable cross-reference
interchangeable
278-2129-030Interchangeable
interchangeable cross-reference
interchangeable
SAE J513 4 010109BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BS5-1638 PIECE 28?
BS5-1638 PIECE 28 is a IMPELLER,PUMP,CENTRIFUGAL.
What parts can replace BS5-1638 PIECE 28?
There are 21 known substitutes for BS5-1638 PIECE 28: RRF221, A121, A121-12-4-5-14R and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BS5-1638 PIECE 28?
BS5-1638 PIECE 28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-209-2918. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026