PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1275BCap,filler Opening

Protectoseal Co Container Div · NSN 2590-00-456-1330 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-00-456-1330 — this item is cataloged by the U.S. Government under National Stock Number 2590-00-456-1330. Primary manufacturer part number: 1275B.
Features
  • Cap,filler Opening — FSC 2590
  • Material: COPPER ALLOY OVERALL
  • System for Which Designed: NONPRESSURIZED
  • Thread Diameter: 3.5000 INCHES NOMINAL IN
  • Accommodation Type: HANDLE END GRIPPING
  • Features Provided: BREATHER HOLE
  • Locking Device Type: PADLOCK EYES
  • Style Designator: HINGE TYPE THREADED INTERNAL
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Cap,filler Opening, cataloged under National Stock Number 2590-00-456-1330, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Protectoseal Co Container Div. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2590-00-456-1330
Primary Part Number1275B
Item NameCap,filler Opening
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerProtectoseal Co Container Div
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
System for Which DesignedNONPRESSURIZED
Thread Diameter3.5000 INCHES NOMINAL IN
Accommodation TypeHANDLE END GRIPPING
Features ProvidedBREATHER HOLE
Locking Device TypePADLOCK EYES
Style DesignatorHINGE TYPE THREADED INTERNAL
Thread Series DesignatorUN
Filler Neck Diameter for Which Designed3.500 INCHES NOMINAL IN
Thread Quantity8.000 PER INCH
Overall Diameter5.250 INCHES NOMINAL IN
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-426-33447-57-060 INTERCHANGEABLE
Packing,preformed
Akron Brass Company
5975-00-904-62225353 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
2343698 Clark Equipment Co (USA)
2343698 Dana Off Highway Products, Llc (USA)
757060 Clark Equipment Co (USA)
1275B-12T Protectoseal Co Container Div (USA)
1275B PRIMARY Protectoseal Co Container Div (USA)
Related Parts
5330-00-426-3344INTERCHANGEABLE
PACKING,PREFORMED
7-57-060
5975-00-904-6222INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5353

Frequently Asked Questions

What is NSN 2590-00-456-1330?

NSN 2590-00-456-1330 is a Cap,filler Opening, manufactured by Protectoseal Co Container Div, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-00-456-1330?

NSN 2590-00-456-1330 has 5 cross-referenced part numbers: 2343698 (Clark Equipment Co), 2343698 (Dana Off Highway Products, Llc), 757060 (Clark Equipment Co), 1275B-12T (Protectoseal Co Container Div), 1275B (Protectoseal Co Container Div).

What NSN replaces 2590-00-456-1330?

There are 2 known substitutes for 2590-00-456-1330: 5330-00-426-3344, 5975-00-904-6222. Verify interchangeability with system specifications before substitution.

What are the specifications of 1275B?

Key specifications for 1275B: Material: COPPER ALLOY OVERALL; System for Which Designed: NONPRESSURIZED; Overall Height: 2.625 INCHES NOMINAL IN; Thread Diameter: 3.5000 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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