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21688 — CAM,RING FUEL PUMP

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

21688: CAM,RING FUEL PUMP.

The CAM,RING FUEL PUMP is a the manufacturer industrial component. Key specifications include style_designator: BLANK, PLAIN, NO OUTSIDE FLANGES. This part is cataloged in the U.S.

Government catalog under NSN 2910-00-780-1824, 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
21688
NSN: 2910-00-780-1824
NIINs: 007801824, 012286070, 012616730
FSC: 2910 — Engine Fuel System Components, Nonaircraft
CAGE: 84760 — STANADYNE CORPORATION DBA STANADYNE DIESEL SYSTEMS DIV DIESEL SYSTEMS (USA)
SPECIFICATIONS
style_designatorBLANK, PLAIN, NO OUTSIDE FLANGES
NSN2910-00-780-1824
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAM,RING FUEL PUMP TITLE COMPONENT PN 21688 MFR CAM,RING FUEL PUMP
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL;OD 2.750 IN.;0.375 IN. THICK;INCLUDES ONE UNTHD HOLE 0.375 IN.DIA;ONE THD HOLE 0.343 IN.DIA IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL;OD 2.750 IN.;0.375 IN. THICK;INCLUDES ONE UNTHD HOLE 0.375 IN.DIA;ONE THD HOLE 0.343 IN.DIA IN
SUBSTITUTES & CROSS-REFERENCES 1
16862Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21688?
21688 is a CAM,RING FUEL PUMP.
What parts can replace 21688?
There is 1 known substitute for 21688: 16862. Substitute compatibility should be verified for your specific system.
What is the NSN for 21688?
21688 is cataloged in the U.S. Government catalog under NSN 2910-00-780-1824. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.