PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23431Washer,flat

Triumph Engine Control Systems Llc · NSN 5310-00-831-2323 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-831-2323 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-831-2323. Primary manufacturer part number: 23431.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Material: STEEL COMP 302 OVERALL
  • Material Document and Classification: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Thickness: 0.020 INCHES NOMINAL IN
  • Hole Diameter: 0.285 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-831-2323, 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 3 commercial cross-references from 3 manufacturers, 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
NSN5310-00-831-2323
Primary Part Number23431
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
MaterialSTEEL COMP 302 OVERALL
Material Document and ClassificationAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thickness0.020 INCHES NOMINAL IN
Hole Diameter0.285 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Diameter0.390 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4820-00-106-1712146-01007-1 INTERCHANGEABLE
Seat,valve
Grove Valve Operations
9320-01-022-849323431 INTERCHANGEABLE
Tape,adhesive,rubber
Revere Products Co
5998-01-110-4707 INTERCHANGEABLE
Circuit Card Assembly
4320-01-200-19862343-2 INTERCHANGEABLE
Pump,gear Accumulator
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5945-01-276-0610 INTERCHANGEABLE
Relay,reed
6850-01-493-306823431 INTERCHANGEABLE
Sealer,chemical
Rectorseal Corp the
Cross-Reference Index
Part NumberManufacturer
CM-23431 Cmp Hydraulics Inc. (USA)
23431 Goodrich Control Systems Gmbh (DEU)
23431 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
4820-00-106-1712INTERCHANGEABLE
SEAT,VALVE
146-01007-1
9320-01-022-8493INTERCHANGEABLE
TAPE,ADHESIVE,RUBBER
23431
5998-01-110-4707INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4320-01-200-1986INTERCHANGEABLE
PUMP,GEAR ACCUMULATOR
2343-2
5945-01-276-0610INTERCHANGEABLE
RELAY,REED
6850-01-493-3068INTERCHANGEABLE
SEALER,CHEMICAL
23431

Frequently Asked Questions

What is NSN 5310-00-831-2323?

NSN 5310-00-831-2323 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 5310-00-831-2323?

NSN 5310-00-831-2323 has 3 cross-referenced part numbers: CM-23431 (Cmp Hydraulics Inc.), 23431 (Goodrich Control Systems Gmbh), 23431 (Triumph Engine Control Systems Llc).

What NSN replaces 5310-00-831-2323?

There are 6 known substitutes for 5310-00-831-2323: 4820-00-106-1712, 9320-01-022-8493, 5998-01-110-4707 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23431?

Key specifications for 23431: Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL COMP 302 OVERALL; Material Document and Classification: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-831-2323 still in active supply?

NSN 5310-00-831-2323 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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