NSN 2590-01-049-3260 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-049-3260. Manufacturer of record part number: 517AS263.
Filler Neck Diameter for Which Designed: 1.500 INCHES NOMINAL IN
System for Which Designed: NONPRESSURIZED
Special Markings: LOOSEN SLOWLY
Material: PLASTIC BODY
Identification
NSN: 2590-01-049-3260
NIIN: 010493260
FSC: 2590 — Miscellaneous Vehicular Components
FSG: 25 — Vehicular Equipment Components
Primary part number: 517AS263
Manufacturer: The Entwistle Company Llc
General Description
The Cap,filler Opening, cataloged under National Stock Number 2590-01-049-3260, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 2590 — Miscellaneous Vehicular Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2590-00-006-7503
2590-00-006-7503 · Item name not on file
2590-00-007-2356
2590-00-007-2356 · Item name not on file
2590-01-151-9629
HYDROVAC
2590-01-445-9216
VALVE,AIR CONTROL
2590-01-468-7350
WINCH,DRUM,VEHICLE MOUNTING
2590-01-600-0314
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2590-01-600-0319
VEHICULAR AMMO POUCH
2590-01-608-6611
BRACKET,VEHICULAR COMPONENTS
Frequently Asked Questions
What is NSN 2590-01-049-3260?
NSN 2590-01-049-3260 is a Cap,filler Opening, manufactured by The Entwistle Company Llc, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
What part numbers are listed for NSN 2590-01-049-3260?
NSN 2590-01-049-3260 has 2 manufacturer part numbers on file: 517AS263 (The Entwistle Company Llc), 517AS263 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 517AS263?
Key specifications for 517AS263: Accommodation Type: PLAIN END GRIPPING; Retaining Device Type: CHAIN; Criticality Code Justification: FEAT; Filler Neck Diameter for Which Designed: 1.500 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 2590-01-049-3260 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.