PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G791Cap,filler Opening

Stant Mfg Co Inc · NSN 2590-01-156-0290 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-01-156-0290 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-156-0290. Primary manufacturer part number: G791.
Features
  • Cap,filler Opening — FSC 2590
  • System for Which Designed: PRESSURIZED
  • Pressure Relief Method: AUTOMATIC
  • Outside Diameter: 2.859 INCHES NOMINAL IN
  • Material: PLASTIC OVERALL
  • Accommodation Type: KNURLED END GRIPPING
  • 3 verified cross-references
  • Primary manufacturer: Stant Mfg Co Inc
Applications
  • Applications requiring Plastic Overall construction
General Description

The Cap,filler Opening, cataloged under National Stock Number 2590-01-156-0290, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Stant Mfg Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2590-01-156-0290
Primary Part NumberG791
Item NameCap,filler Opening
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerStant Mfg Co Inc
StatusACTIVE
System for Which DesignedPRESSURIZED
Pressure Relief MethodAUTOMATIC
Outside Diameter2.859 INCHES NOMINAL IN
MaterialPLASTIC OVERALL
Accommodation TypeKNURLED END GRIPPING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5315-01-324-8900 INTERCHANGEABLE
Pin,straight,headless
Cross-Reference Index
Part NumberManufacturer
G791 PRIMARY Stant Mfg Co Inc (USA)
EG-794E Stant Corp Edelmann Div (USA)
G778 Stant Mfg Co Inc (USA)
Related Parts
5315-01-324-8900INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS

Frequently Asked Questions

What is NSN 2590-01-156-0290?

NSN 2590-01-156-0290 is a Cap,filler Opening, manufactured by Stant Mfg Co Inc, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-01-156-0290?

NSN 2590-01-156-0290 has 3 cross-referenced part numbers: G791 (Stant Mfg Co Inc), EG-794E (Stant Corp Edelmann Div), G778 (Stant Mfg Co Inc).

What NSN replaces 2590-01-156-0290?

There is 1 known substitute for 2590-01-156-0290: 5315-01-324-8900. Verify interchangeability with system specifications before substitution.

What are the specifications of G791?

Key specifications for G791: System for Which Designed: PRESSURIZED; Overall Height: 1.937 INCHES NOMINAL IN; Pressure Relief Method: AUTOMATIC; Outside Diameter: 2.859 INCHES NOMINAL IN. 6 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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