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Technical Data Sheet
B-21688 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The PUMP,RECIPROCATING is a the manufacturer industrial component. Key specifications include mounting_type: BASE, operation_method: MANUAL, discharge_pressure: 500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES, volume_control_type: PUSH-PULL, pumping_element_type: PISTON, end_item_identification: WEAPON SYSTEM E/I KIDD CLASS DDG. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-412-3878, 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
B-21688
NSN: 4320-01-412-3878
FSC: 4320
CAGE: 38999 — ARVA INDUSTRIES INC (CAN)
SPECIFICATIONS
mounting_typeBASE
operation_methodMANUAL
cylinder_quantity1
discharge_pressure500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
volume_control_typePUSH-PULL
pumping_element_typePISTON
end_item_identificationWEAPON SYSTEM E/I KIDD CLASS DDG
media_for_which_designedHYDROCARBON FUELS AND OILS
discharge_connection_typeTHREADED INTERNAL
pump_reciprocating_designSINGLE ACTING
reciprocating_stroke_typeVARIABLE
discharge_connection_quantity1
NSN4320-01-412-3878
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PUMP,RECIPROCATING TITLE COMPONENT PN B-21688 MFR PUMP,RECIPROCATING
KEY FEATURES
MEDIA FOR WHICH DESIGNED: HYDROCARBON FUELS AND OILS
CYLINDER QUANTITY: 1
PUMP RECIPROCATING DESIGN: SINGLE ACTING
PUMPING ELEMENT TYPE: PISTON
DISCHARGE PRESSURE: 500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
DISCHARGE CONNECTION TYPE: THREADED INTERNAL
DISCHARGE CONNECTION THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.375-18 NPT
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDHYDROCARBON FUELS AND OILS
CYLINDER QUANTITY1
PUMP RECIPROCATING DESIGNSINGLE ACTING
PUMPING ELEMENT TYPEPISTON
DISCHARGE PRESSURE500.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
END ITEM IDENTIFICATIONWEAPON SYSTEM E/I KIDD CLASS DDG
DISCHARGE CONNECTION TYPETHREADED INTERNAL
DISCHARGE CONNECTION THREAD SIZE AND SERIES/TYPE DESIGNATOR0.375-18 NPT
PUMPING ELEMENT OPERATING POSITIONVERTICAL
RECIPROCATING STROKE TYPEVARIABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
100302Interchangeable
interchangeable cross-reference
interchangeable
T100302Interchangeable
interchangeable cross-reference
interchangeable
A10044DAPInterchangeable
interchangeable cross-reference
interchangeable
SM-A-617908-1Interchangeable
interchangeable cross-reference
interchangeable
300SMETYPE2C100Interchangeable
interchangeable cross-reference
interchangeable
1064-164252Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-21688?
B-21688 is a PUMP,RECIPROCATING.
What parts can replace B-21688?
There are 11 known substitutes for B-21688: 100302, T100302, A10044DAP and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-21688?
B-21688 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-01-412-3878. This indicates validated use in U.S. government and defense supply chains.
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