PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45554Washer,flat

Triumph Engine Control Systems Llc · NSN 5310-00-618-2108 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-618-2108 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-618-2108. Primary manufacturer part number: 45554.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.126 INCHES NOMINAL IN
  • Surface Finish: 63.0 MICROINCHES ALL SURFACES
  • Material: STEEL COMP 416F OVERALL
  • Heat Treatment: AS FABRICATED
  • Material Document and Classification: AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Peripheral Shape Style: ROUND
  • Thickness: 0.020 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416f Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-618-2108, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-618-2108
Primary Part Number45554
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
Hole Diameter0.126 INCHES NOMINAL IN
Surface Finish63.0 MICROINCHES ALL SURFACES
MaterialSTEEL COMP 416F OVERALL
Heat TreatmentAS FABRICATED
Material Document and ClassificationAMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Peripheral Shape StyleROUND
Thickness0.020 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Diameter0.190 INCHES NOMINAL IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape StyleRECTANGULAR
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3455-00-015-842359-10018 INTERCHANGEABLE
Cutter,milling,metal Slitting
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5935-00-165-33854-55-54 INTERCHANGEABLE
Connector,receptacle,electrical
Ted Manufacturing Corp Div Ted Manufacturing Corporation
5310-00-208-367545554 INTERCHANGEABLE
Nut,plain,round
Northrop Grumman Systems Corporation Div Marine Systems
6625-01-287-32284555-4 INTERCHANGEABLE
Probe,test
Fluke Electronics Corp
Cross-Reference Index
Part NumberManufacturer
45554 Goodrich Control Systems Gmbh (DEU)
45554 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
3455-00-015-8423INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
59-10018
5935-00-165-3385INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4-55-54
5310-00-208-3675INTERCHANGEABLE
NUT,PLAIN,ROUND
45554
6625-01-287-3228INTERCHANGEABLE
PROBE,TEST
4555-4

Frequently Asked Questions

What is NSN 5310-00-618-2108?

NSN 5310-00-618-2108 is a Washer,flat, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-618-2108?

NSN 5310-00-618-2108 has 2 cross-referenced part numbers: 45554 (Goodrich Control Systems Gmbh), 45554 (Triumph Engine Control Systems Llc).

What NSN replaces 5310-00-618-2108?

There are 4 known substitutes for 5310-00-618-2108: 3455-00-015-8423, 5935-00-165-3385, 5310-00-208-3675 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45554?

Key specifications for 45554: Hole Diameter: 0.126 INCHES NOMINAL IN; Surface Finish: 63.0 MICROINCHES ALL SURFACES; Material: STEEL COMP 416F OVERALL; Heat Treatment: AS FABRICATED. 12 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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