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345-1923 — PUMP,COOLING SYSTEM,ENGINE

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

345-1923: PUMP,COOLING SYSTEM,ENGINE.

The PUMP,COOLING SYSTEM,ENGINE is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include special_features: NEXT HIGHER ASSEMBLY 329-8588 PUMP GP-WATER; ENGINE GP, end_item_identification: D5K 2XL TRACTOR, FULL TRACKED, LOW SPEED, part_name_assigned_by_controlling_agency: PUMP, COOLANT. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-526-6355, 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
345-1923
NSN: 4720-01-526-6355
NIINs: 015266355, 016149752
FSC: 4720 — Hose and Flexible Tubing
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
special_featuresNEXT HIGHER ASSEMBLY 329-8588 PUMP GP-WATER; ENGINE GP
end_item_identificationD5K 2XL TRACTOR, FULL TRACKED, LOW SPEED
part_name_assigned_by_controlling_agencyPUMP, COOLANT
NSN4720-01-526-6355
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 345-1923 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 345-1923?
345-1923 is a PUMP,COOLING SYSTEM,ENGINE.
What is the NSN for 345-1923?
345-1923 is cataloged in the U.S. Government catalog under NSN 4720-01-526-6355. 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.