PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525238Cap,filler Opening

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5340-00-540-5298 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-540-5298 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-540-5298. Primary manufacturer part number: 525238.
Features
  • Cap,filler Opening — FSC 5340
  • Outside Diameter: 3.310 INCHES NOMINAL IN
  • System for Which Designed: PRESSURIZED
  • Material: ALUMINUM ALLOY OVERALL
  • Cam Quantity: 3
  • Maximum Working Pressure: 12.000 POUNDS PER SQUARE INCH (PSI) LBS
  • Accommodation Type: HANDLE END GRIPPING
  • 4 verified cross-references
Applications
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Cap,filler Opening, cataloged under National Stock Number 5340-00-540-5298, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-540-5298
Primary Part Number525238
Item NameCap,filler Opening
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Outside Diameter3.310 INCHES NOMINAL IN
System for Which DesignedPRESSURIZED
MaterialALUMINUM ALLOY OVERALL
Cam Quantity3
Maximum Working Pressure12.000 POUNDS PER SQUARE INCH (PSI) LBS
Accommodation TypeHANDLE END GRIPPING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5340-01-499-411032U-0216 SUCCESSOR
Clamp,loop
Battle Motors, Inc.
5331-00-021-3637AS568-161 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
525238 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
525238 Rtx Corporation Div Pratt & Whitney (USA)
334819 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
327315 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5340-01-499-4110SUCCESSOR
CLAMP,LOOP
32U-0216
5331-00-021-3637INTERCHANGEABLE
O-RING
AS568-161

Frequently Asked Questions

What is NSN 5340-00-540-5298?

NSN 5340-00-540-5298 is a Cap,filler Opening, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-540-5298?

NSN 5340-00-540-5298 has 4 cross-referenced part numbers: 525238 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 525238 (Rtx Corporation Div Pratt & Whitney), 334819 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 327315 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5340-00-540-5298?

There are 2 known substitutes for 5340-00-540-5298: 5340-01-499-4110, 5331-00-021-3637. Verify interchangeability with system specifications before substitution.

What are the specifications of 525238?

Key specifications for 525238: Overall Height: 1.375 INCHES NOMINAL IN; Outside Diameter: 3.310 INCHES NOMINAL IN; System for Which Designed: PRESSURIZED; Material: ALUMINUM ALLOY OVERALL. 7 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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