PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1166-25Washer,flat

Elbitamerica, Inc. · NSN 5310-00-205-9174 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-205-9174 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-205-9174. Primary manufacturer part number: 1166-25.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.200 INCHES NOMINAL IN
  • Material Document and Classification: QQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: ALUMINUM ALLOY 2017 OVERALL
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Aluminum Alloy 2017 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-205-9174, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Elbitamerica, Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-205-9174
Primary Part Number1166-25
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerElbitamerica, Inc.
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.200 INCHES NOMINAL IN
Material Document and ClassificationQQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialALUMINUM ALLOY 2017 OVERALL
Peripheral Shape StyleROUND
Overall Diameter0.500 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Thickness0.064 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4920-00-040-9125116625-1 INTERCHANGEABLE
Simulator Unit
Drs Technologies Canada Ltd
3110-00-100-3124 INTERCHANGEABLE
Cone and Rollers,tapered Roller
3020-01-274-8100116625 INTERCHANGEABLE
Gear,spur
Itw Food Equipment Group Llc Dba Hobart Service
Cross-Reference Index
Part NumberManufacturer
1166-25 PRIMARY Elbitamerica, Inc. (USA)
Related Parts
4920-00-040-9125INTERCHANGEABLE
SIMULATOR UNIT
116625-1
3110-00-100-3124INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3020-01-274-8100INTERCHANGEABLE
GEAR,SPUR
116625

Frequently Asked Questions

What is NSN 5310-00-205-9174?

NSN 5310-00-205-9174 is a Washer,flat, manufactured by Elbitamerica, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-205-9174?

NSN 5310-00-205-9174 has 1 cross-referenced part number: 1166-25 (Elbitamerica, Inc.).

What NSN replaces 5310-00-205-9174?

There are 3 known substitutes for 5310-00-205-9174: 4920-00-040-9125, 3110-00-100-3124, 3020-01-274-8100. Verify interchangeability with system specifications before substitution.

What are the specifications of 1166-25?

Key specifications for 1166-25: Cross-Sectional Shape Style: RECTANGULAR; Hole Diameter: 0.200 INCHES NOMINAL IN; Material Document and Classification: QQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: ALUMINUM ALLOY 2017 OVERALL. 8 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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