PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12558Washer,flat

Triumph Engine Control Systems Llc · NSN 5310-00-595-6375 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-595-6375 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-595-6375. Primary manufacturer part number: 12558.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: AMS 5515 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5516 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5517 ASSN STD 2ND MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 302 OR STEEL COMP 301 OVERALL
  • Thickness: 0.031 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.220 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 301 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-595-6375, 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 9 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-595-6375
Primary Part Number12558
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusCANCELLED
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationAMS 5515 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5516 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5517 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 302 OR STEEL COMP 301 OVERALL
Thickness0.031 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Overall Diameter0.220 INCHES NOMINAL IN
Hole Diameter0.140 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5330-00-410-344512558-0000 INTERCHANGEABLE
Gasket
Paxton Co
5340-00-838-9402NAS1282B10 INTERCHANGEABLE
Snap Hook
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
2915-00-896-730112558 INTERCHANGEABLE
Air Cap
Collins Engine Nozzles, Inc
7310-01-290-5144 INTERCHANGEABLE
Speed Control,toaster
4820-01-366-626312558 INTERCHANGEABLE
Assembly Valve
DP Manufacturing Inc.
4820-01-501-6997 INTERCHANGEABLE
Valve,expansion
Cross-Reference Index
Part NumberManufacturer
12558 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
5330-00-410-3445INTERCHANGEABLE
GASKET
12558-0000
5340-00-838-9402INTERCHANGEABLE
SNAP HOOK
NAS1282B10
2915-00-896-7301INTERCHANGEABLE
AIR CAP
12558
7310-01-290-5144INTERCHANGEABLE
SPEED CONTROL,TOASTER
4820-01-366-6263INTERCHANGEABLE
ASSEMBLY VALVE
12558
4820-01-501-6997INTERCHANGEABLE
VALVE,EXPANSION

Frequently Asked Questions

What is NSN 5310-00-595-6375?

NSN 5310-00-595-6375 is a Washer,flat, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-595-6375?

NSN 5310-00-595-6375 has 1 cross-referenced part number: 12558 (Triumph Engine Control Systems Llc).

What NSN replaces 5310-00-595-6375?

There are 6 known substitutes for 5310-00-595-6375: 5330-00-410-3445, 5340-00-838-9402, 2915-00-896-7301 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12558?

Key specifications for 12558: Center Hole Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: AMS 5515 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5516 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5517 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Material: STEEL COMP 302 OR STEEL COMP 301 OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-595-6375 still in active supply?

NSN 5310-00-595-6375 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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