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Technical Data Sheet

4021/16008 — CAP,FILLER OPENING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4021/16008: CAP,FILLER OPENING.

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include style_designator: CIRCULAR TYPE THREADED INTERNAL, accommodation_type: NOTCHED END GRIPPING, pressure_relief_method: MANUAL, system_for_which_designed: PRESSURIZED. This part is cataloged in the U.S.

Government catalog under NSN 2590-01-274-1848, 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
4021/16008
NSN: 2590-01-274-1848
FSC: 2590 — Miscellaneous Vehicular Components
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
style_designatorCIRCULAR TYPE THREADED INTERNAL
accommodation_typeNOTCHED END GRIPPING
pressure_relief_methodMANUAL
system_for_which_designedPRESSURIZED
NSN2590-01-274-1848
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP,FILLER OPENING TITLE COMPONENT PN 4021/16008 MFR CAP,FILLER OPENING
KEY FEATURES
•
ACCOMMODATION TYPE: NOTCHED END GRIPPING
•
STYLE DESIGNATOR: CIRCULAR TYPE THREADED INTERNAL
•
SYSTEM FOR WHICH DESIGNED: PRESSURIZED
•
PRESSURE RELIEF METHOD: MANUAL
TECHNICAL CHARACTERISTICS
ACCOMMODATION TYPENOTCHED END GRIPPING
STYLE DESIGNATORCIRCULAR TYPE THREADED INTERNAL
SYSTEM FOR WHICH DESIGNEDPRESSURIZED
PRESSURE RELIEF METHODMANUAL
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 2
V037098Reference document
Same NSN cross-reference
Reference document — Secondary reference
V37098Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4021/16008?
4021/16008 is a CAP,FILLER OPENING.
What parts can replace 4021/16008?
There are 2 known substitutes for 4021/16008: V037098, V37098. Substitute compatibility should be verified for your specific system.
What is the NSN for 4021/16008?
4021/16008 is cataloged in the U.S. Government catalog under NSN 2590-01-274-1848. 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.