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1658878 — CAP,LUBRICATION FITTING,PROTECTI

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1658878: CAP,LUBRICATION FITTING,PROTECTI.

CAP,LUBRICATION FITTING,PROTECTI. Key specifications include end_item_identification: 2320-01-528-6294 TRUCK, TANK, part_name_assigned_by_controlling_agency: FITTING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-559-2889, 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
1658878
NSN: 4730-01-559-2889
NIINs: 015592889, 015593620, 015597605, 015776435, 015786837
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 04664 — PIERCE MANUFACTURING INC (USA)
SPECIFICATIONS
end_item_identification2320-01-528-6294 TRUCK, TANK
part_name_assigned_by_controlling_agencyFITTING
NSN4730-01-559-2889
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1658878 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING
END ITEM IDENTIFICATION2320-01-528-6294 TRUCK, TANK
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 1658878?
1658878 is a CAP,LUBRICATION FITTING,PROTECTI.
What is the NSN for 1658878?
1658878 is cataloged in the U.S. Government catalog under NSN 4730-01-559-2889. 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.