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1558644 — CAP,FILLER OPENING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1558644: CAP,FILLER OPENING.

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, thread_length: 0.688 INCHES NOMINAL IN, overall_height: 2.375 INCHES NOMINAL IN, thread_diameter: 4.000 INCHES NOMINAL IN, outside_diameter: 5.000 INCHES NOMINAL IN, style_designator: NON-VENTED THREADED TYPE (INTERNAL). This part is cataloged in the U.S.

Government catalog under NSN 2590-00-003-0160, 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
1558644
NSN: 2590-00-003-0160
FSC: 2590 — Miscellaneous Vehicular Components
CAGE: 77237 — DANA OFF HIGHWAY PRODUCTS, LLC (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
thread_length0.688 INCHES NOMINAL IN
overall_height2.375 INCHES NOMINAL IN
thread_diameter4.000 INCHES NOMINAL IN
outside_diameter5.000 INCHES NOMINAL IN
style_designatorNON-VENTED THREADED TYPE (INTERNAL)
thread_series_designatorNPT
system_for_which_designedNONPRESSURIZED
NSN2590-00-003-0160
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP,FILLER OPENING TITLE COMPONENT PN 1558644 MFR CAP,FILLER OPENING
KEY FEATURES
•
THREAD LENGTH: 0.688 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-VENTED THREADED TYPE (INTERNAL)
•
THREAD DIAMETER: 4.000 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 5.000 INCHES NOMINAL IN
•
SYSTEM FOR WHICH DESIGNED: NONPRESSURIZED
•
MATERIAL: ALUMINUM OVERALL
•
THREAD SERIES DESIGNATOR: NPT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.375 INCHES NOMINAL IN
THREAD LENGTH0.688 INCHES NOMINAL IN
STYLE DESIGNATORNON-VENTED THREADED TYPE (INTERNAL)
THREAD DIAMETER4.000 INCHES NOMINAL IN
OUTSIDE DIAMETER5.000 INCHES NOMINAL IN
SYSTEM FOR WHICH DESIGNEDNONPRESSURIZED
MATERIALALUMINUM OVERALL
THREAD SERIES DESIGNATORNPT
OTHER ITEMS IN FSC 2590 — Miscellaneous Vehicular Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2590-00-001-1252 2590-00-001-1253 2590-00-001-1254 2590-00-001-3423 2590-00-001-3438 2590-00-001-3439 2590-00-001-3461 2590-00-001-3463
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 1558644?
1558644 is a CAP,FILLER OPENING.
What is the NSN for 1558644?
1558644 is cataloged in the U.S. Government catalog under NSN 2590-00-003-0160. 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.