PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1905-103Washer,flat

Entron Industries Limited Partnership Dba Entron Industries Property Div · NSN 5310-00-012-0385 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-0385 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-0385. Primary manufacturer part number: 1905-103.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.562 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.250 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-012-0385, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Entron Industries Limited Partnership Dba Entron Industries Property Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-012-0385
Primary Part Number1905-103
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEntron Industries Limited Partnership Dba Entron Industries Property Div
StatusCANCELLED
Overall Diameter0.562 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.250 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Thickness0.049 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5305-00-013-211910-16487 INTERCHANGEABLE
Screw,machine
Precision Aerospace Corporation Dba Precision Engine Control
2810-00-310-2867120385 INTERCHANGEABLE
Gear,fuel Pump-Tach
Curtiss-Wright Controls, Inc. Div Actuation Division
5310-00-685-8308 INTERCHANGEABLE
Washer,flat
6680-01-181-7183MS-120-A-1 INTERCHANGEABLE
Meter,volumetric Positive Displa
Liquid Controls, L.l.c. Div Idex Corporation
5310-01-195-5091 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
120385 General Motors Corp (USA)
1905-103 PRIMARY Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
D11076-28A24 Met-Pro Corporation (USA)
11X100 PRIMARY Eastern Co Div Eberhard Manufacturing (USA)
11X100 Eastern Co the (USA)
MILW1085TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
14162A Hercules Engine Co Inc (USA)
14162A PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
120385 General Motors Llc Dba General Motors Llc (USA)
Related Parts
5305-00-013-2119INTERCHANGEABLE
SCREW,MACHINE
10-16487
2810-00-310-2867INTERCHANGEABLE
GEAR,FUEL PUMP-TACH
120385
5310-00-685-8308INTERCHANGEABLE
WASHER,FLAT
6680-01-181-7183INTERCHANGEABLE
METER,VOLUMETRIC POSITIVE DISPLA
MS-120-A-1
5310-01-195-5091INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-00-012-0385?

NSN 5310-00-012-0385 is a Washer,flat, manufactured by Entron Industries Limited Partnership Dba Entron Industries Property Div, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-012-0385?

NSN 5310-00-012-0385 has 9 cross-referenced part numbers: 120385 (General Motors Corp), 1905-103 (Entron Industries Limited Partnership Dba Entron Industries Property Div), D11076-28A24 (Met-Pro Corporation), 11X100 (Eastern Co Div Eberhard Manufacturing), 11X100 (Eastern Co the) and 4 more.

What NSN replaces 5310-00-012-0385?

There are 5 known substitutes for 5310-00-012-0385: 5305-00-013-2119, 2810-00-310-2867, 5310-00-685-8308 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1905-103?

Key specifications for 1905-103: Overall Diameter: 0.562 INCHES NOMINAL IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-012-0385 still in active supply?

NSN 5310-00-012-0385 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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