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9F9957 — CAP,FILLER OPENING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9F9957: CAP,FILLER OPENING.

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, thread_class: 2A A, overall_height: 2.375 INCHES NOMINAL IN, thread_diameter: 4.7500 INCHES NOMINAL IN, thread_quantity: 12.000 PER INCH, outside_diameter: 5.187 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2590-00-321-9542, 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
9F9957
NSN: 2590-00-321-9542
FSC: 2590 — Miscellaneous Vehicular Components
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
thread_class2A A
overall_height2.375 INCHES NOMINAL IN
thread_diameter4.7500 INCHES NOMINAL IN
thread_quantity12.000 PER INCH
outside_diameter5.187 INCHES NOMINAL IN
special_featuresCURLED BRASS FILTERING MATERIAL IN CAP
special_markingsBUY CLEAN FUEL AND KEEP IT CLEAN
style_designatorCIRCULAR TYPE THREADED INTERNAL
features_providedBREATHER HOLE
accommodation_typeLUGS END GRIPPING
thread_series_designatorUN
NSN2590-00-321-9542
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP,FILLER OPENING TITLE COMPONENT PN 9F9957 MFR CAP,FILLER OPENING
KEY FEATURES
•
ACCOMMODATION TYPE: LUGS END GRIPPING
•
STYLE DESIGNATOR: CIRCULAR TYPE THREADED INTERNAL
•
FILLER NECK DIAMETER FOR WHICH DESIGNED: 4.750 INCHES NOMINAL IN
•
THREAD DIAMETER: 4.7500 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 5.187 INCHES NOMINAL IN
•
FEATURES PROVIDED: BREATHER HOLE
•
SYSTEM FOR WHICH DESIGNED: NONPRESSURIZED
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.375 INCHES NOMINAL IN
ACCOMMODATION TYPELUGS END GRIPPING
STYLE DESIGNATORCIRCULAR TYPE THREADED INTERNAL
FILLER NECK DIAMETER FOR WHICH DESIGNED4.750 INCHES NOMINAL IN
THREAD DIAMETER4.7500 INCHES NOMINAL IN
OUTSIDE DIAMETER5.187 INCHES NOMINAL IN
FEATURES PROVIDEDBREATHER HOLE
SYSTEM FOR WHICH DESIGNEDNONPRESSURIZED
SPECIAL FEATURESCURLED BRASS FILTERING MATERIAL IN CAP
THREAD CLASS2A A
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 9F9957?
9F9957 is a CAP,FILLER OPENING.
What is the NSN for 9F9957?
9F9957 is cataloged in the U.S. Government catalog under NSN 2590-00-321-9542. 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.