PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40756DCap,filler Opening

Komatsu America Corp. · NSN 2590-00-253-7421 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-00-253-7421 — this item is cataloged by the U.S. Government under National Stock Number 2590-00-253-7421. Primary manufacturer part number: 40756D.
Features
  • Cap,filler Opening — FSC 2590
  • System for Which Designed: NONPRESSURIZED
  • Pressure Relief Method: MANUAL
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • FSC Application Data: ENGINE FUEL SYSTEM
  • Outside Diameter: 1.859 INCHES NOMINAL IN
  • Cam Quantity: 2
Applications
  • Applications requiring Steel Overall construction
General Description

The Cap,filler Opening, cataloged under National Stock Number 2590-00-253-7421, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Komatsu America Corp.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 32 commercial cross-references from 21 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2590-00-253-7421
Primary Part Number40756D
Item NameCap,filler Opening
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerKomatsu America Corp.
StatusCANCELLED
System for Which DesignedNONPRESSURIZED
Pressure Relief MethodMANUAL
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
FSC Application DataENGINE FUEL SYSTEM
Outside Diameter1.859 INCHES NOMINAL IN
Cam Quantity2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2805-00-021-0577134-0589 INTERCHANGEABLE
Guard,cylinder
Cummins Power Generation Inc.
5950-00-074-32891597 INTERCHANGEABLE
Coil,radio Frequency
Torotel, Inc. Div Torotel Products, Inc.
6220-00-122-667530-0087 INTERCHANGEABLE
Spotlight
Grimes Aerospace Company
5210-00-132-5689 INTERCHANGEABLE
Gage,height
5905-00-133-29191597 INTERCHANGEABLE
Resistor Set,matched
Ballantine Laboratories Inc
3110-00-144-89336417 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3110-00-156-18972913 INTERCHANGEABLE
Bearing,ball,thrust
Skf Usa Inc.
3110-00-156-8118108-345-1PC2305 INTERCHANGEABLE
Bearing,ball,annular
Struthers Wells Corp
5940-00-171-015612-360 INTERCHANGEABLE
Terminal Board
Stancil Corp
5310-00-186-0961 INTERCHANGEABLE
Washer,key
Cross-Reference Index
Part NumberManufacturer
15-13 Scott Huber Essick a Co of Figgie International Inc (USA)
1HHF301 Schramm, Inc. (USA)
159-7 Cummins Power Generation Inc. (USA)
C1-749 Eaton Corp Stamping Div (USA)
40756D PRIMARY Komatsu America Corp. (USA)
69961 Briggs and Stratton Corp (USA)
292710 Briggs and Stratton Corp (USA)
75646 Cummins Power Generation Inc. (USA)
18698 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
300087 Outboard Marine Corp (USA)
292481 PRIMARY Briggs and Stratton Corp (USA)
40756D Navistar International Corporation Dba Navistar (USA)
JHP33-253 Hollingsworth John R Co (USA)
300087 Outboard Marine Corp Johnson Motors Div (USA)
C1749 Eaton Corp Stamping Div (USA)
RC87 Wisconsin Motors, Llc (USA)
69961 Briggs and Stratton Corp (USA)
300087 Brp Us Inc (USA)
38886 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
WPP124 Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA)
Related Parts
2805-00-021-0577INTERCHANGEABLE
GUARD,CYLINDER
134-0589
5950-00-074-3289INTERCHANGEABLE
COIL,RADIO FREQUENCY
1597
6220-00-122-6675INTERCHANGEABLE
SPOTLIGHT
30-0087
5210-00-132-5689INTERCHANGEABLE
GAGE,HEIGHT
5905-00-133-2919INTERCHANGEABLE
RESISTOR SET,MATCHED
1597
3110-00-144-8933INTERCHANGEABLE
BEARING,BALL,ANNULAR
6417
3110-00-156-1897INTERCHANGEABLE
BEARING,BALL,THRUST
2913
3110-00-156-8118INTERCHANGEABLE
BEARING,BALL,ANNULAR
108-345-1PC2305
5940-00-171-0156INTERCHANGEABLE
TERMINAL BOARD
12-360
5310-00-186-0961INTERCHANGEABLE
WASHER,KEY
5365-00-188-8325INTERCHANGEABLE
SPACER,RING
5940-00-192-9962INTERCHANGEABLE
TERMINAL BOARD
1390

Frequently Asked Questions

What is NSN 2590-00-253-7421?

NSN 2590-00-253-7421 is a Cap,filler Opening, manufactured by Komatsu America Corp., classified under FSC 2590 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2590-00-253-7421?

NSN 2590-00-253-7421 has 32 cross-referenced part numbers: 15-13 (Scott Huber Essick a Co of Figgie International Inc), 1HHF301 (Schramm, Inc.), 159-7 (Cummins Power Generation Inc.), C1-749 (Eaton Corp Stamping Div), 40756D (Komatsu America Corp.) and 27 more.

What NSN replaces 2590-00-253-7421?

There are 12 known substitutes for 2590-00-253-7421: 2805-00-021-0577, 5950-00-074-3289, 6220-00-122-6675 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40756D?

Key specifications for 40756D: System for Which Designed: NONPRESSURIZED; Pressure Relief Method: MANUAL; Surface Treatment: ZINC OVERALL; Material: STEEL OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2590-00-253-7421 still in active supply?

NSN 2590-00-253-7421 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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