PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

703-1059Cap,filler Opening

Balkamp Inc · NSN 2590-01-283-8518 · FSC 2590 · No Item Name Available
Verified by PartsTable
NSN 2590-01-283-8518 — this item is cataloged by the U.S. Government under National Stock Number 2590-01-283-8518. Primary manufacturer part number: 703-1059.
Features
  • Cap,filler Opening — FSC 2590
  • Outside Diameter: 2.875 INCHES NOMINAL IN
  • Features Provided: SEAL
  • Color: SILVER
  • Pressure Relief Method: AUTOMATIC
  • Material: STEEL OVERALL
  • Style Designator: PRESSURE-VACUME TYPE FOR EMISSION CONTROL
  • Accommodation Type: KNURLED END GRIPPING
Applications
  • Applications requiring Steel Overall construction
General Description

The Cap,filler Opening, cataloged under National Stock Number 2590-01-283-8518, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Balkamp Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2590-01-283-8518
Primary Part Number703-1059
Item NameCap,filler Opening
FSC / FSG2590 / 25 — No Item Name Available
ManufacturerBalkamp Inc
StatusACTIVE
Outside Diameter2.875 INCHES NOMINAL IN
Features ProvidedSEAL
ColorSILVER
Pressure Relief MethodAUTOMATIC
MaterialSTEEL OVERALL
Style DesignatorPRESSURE-VACUME TYPE FOR EMISSION CONTROL
Accommodation TypeKNURLED END GRIPPING
Surface TreatmentNICKEL OVERALL
System for Which DesignedPRESSURIZED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-145-7551 INTERCHANGEABLE
Angle,structural
5310-00-186-096407062 INTERCHANGEABLE
Washer,key
Hoffman/new Yorker, Inc.
5975-00-246-49061210 INTERCHANGEABLE
Bushing,strain Relief,cable
Heyco Inc Dba Heyco Products
4320-00-398-81509465P INTERCHANGEABLE
Impeller,pump,centrifugal
Curtiss-Wright Electro-Mechanical Corporation Div Epd
6615-00-471-367510742 INTERCHANGEABLE
Clamp,gyroscope
Atlantic Inertial Systems Inc Div Cheshire Division
3020-00-601-5214C302-10-25 INTERCHANGEABLE
Gear,spur
L3 Technologies, Inc. Div L3 Keo
5330-01-027-195410742 INTERCHANGEABLE
Packing,preformed
Dalums Utility Equipment Co Inc
5210-01-100-76253170-5 INTERCHANGEABLE
Dial
Kearflex Engineering Company
5310-01-124-437931705 006 INTERCHANGEABLE
Washer,special
Lake Shore Systems, Inc.
4820-01-218-192610742F INTERCHANGEABLE
Stem,fluid Valve
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
703-1059 PRIMARY Balkamp Inc (USA)
31705 PRIMARY Gates Corporation (USA)
G742 Stant Mfg Co Inc (USA)
10742 Stant Mfg Co Inc (USA)
Related Parts
9540-00-145-7551INTERCHANGEABLE
ANGLE,STRUCTURAL
5310-00-186-0964INTERCHANGEABLE
WASHER,KEY
07062
5975-00-246-4906INTERCHANGEABLE
BUSHING,STRAIN RELIEF,CABLE
1210
4320-00-398-8150INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
9465P
6615-00-471-3675INTERCHANGEABLE
CLAMP,GYROSCOPE
10742
3020-00-601-5214INTERCHANGEABLE
GEAR,SPUR
C302-10-25
5330-01-027-1954INTERCHANGEABLE
PACKING,PREFORMED
10742
5210-01-100-7625INTERCHANGEABLE
DIAL
3170-5
5310-01-124-4379INTERCHANGEABLE
WASHER,SPECIAL
31705 006
4820-01-218-1926INTERCHANGEABLE
STEM,FLUID VALVE
10742F
2815-01-219-0709INTERCHANGEABLE
MANIFOLD,INTAKE
5945-01-302-7809INTERCHANGEABLE
RELAY,THERMAL
107.4-2

Frequently Asked Questions

What is NSN 2590-01-283-8518?

NSN 2590-01-283-8518 is a Cap,filler Opening, manufactured by Balkamp Inc, classified under FSC 2590 (No Item Name Available). Status: active.

What are the part numbers for NSN 2590-01-283-8518?

NSN 2590-01-283-8518 has 4 cross-referenced part numbers: 703-1059 (Balkamp Inc), 31705 (Gates Corporation), G742 (Stant Mfg Co Inc), 10742 (Stant Mfg Co Inc).

What NSN replaces 2590-01-283-8518?

There are 12 known substitutes for 2590-01-283-8518: 9540-00-145-7551, 5310-00-186-0964, 5975-00-246-4906 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 703-1059?

Key specifications for 703-1059: Outside Diameter: 2.875 INCHES NOMINAL IN; Features Provided: SEAL; Color: SILVER; Pressure Relief Method: AUTOMATIC. 10 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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