PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19401Washer,flat

Franklin Engine Co Inc · NSN 5310-00-205-8329 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-205-8329 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-205-8329. Primary manufacturer part number: 19401.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Material: STEEL COMP 1010 OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Features Provided: CASEHARDENED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-205-8329, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Franklin Engine Co Inc. Government technical data includes 13 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-205-8329
Primary Part Number19401
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFranklin Engine Co Inc
StatusACTIVE
Thickness0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
MaterialSTEEL COMP 1010 OVERALL
Surface TreatmentCADMIUM OVERALL
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Features ProvidedCASEHARDENED
Width1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
Peripheral Shape StyleDEE
Hole Diameter0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating50.0 ROCKWELL C MINIMUM AND 80.0 ROCKWELL C MAXIMUM
Overall Diameter1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5935-00-259-0823CO731 INTERCHANGEABLE
Connector,plug,electrical
Grimes Aerospace Company
5330-00-406-56471-940-1 INTERCHANGEABLE
Seal Assy
Rexnord Industries, Llc Div Aerospace Solutions Downers Grove
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3820-01-175-511119401 INTERCHANGEABLE
Bit,rock Drill
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
5342-01-295-866319-401 INTERCHANGEABLE
Plug,special
Rix Industries
5985-01-426-68611940-1 INTERCHANGEABLE
Coupler,antenna
Tech Resources, Inc
8405-01-665-8277DLA2 INTERCHANGEABLE
Hat,service
Navy Clothing and Textile Research Facility Natick Laboratories
Cross-Reference Index
Part NumberManufacturer
19401 Franklin Engine Co Inc (USA)
Related Parts
5935-00-259-0823INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
CO731
5330-00-406-5647INTERCHANGEABLE
SEAL ASSY
1-940-1
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
3820-01-175-5111INTERCHANGEABLE
BIT,ROCK DRILL
19401
5342-01-295-8663INTERCHANGEABLE
PLUG,SPECIAL
19-401
5985-01-426-6861INTERCHANGEABLE
COUPLER,ANTENNA
1940-1
8405-01-665-8277INTERCHANGEABLE
HAT,SERVICE
DLA2

Frequently Asked Questions

What is NSN 5310-00-205-8329?

NSN 5310-00-205-8329 is a Washer,flat, manufactured by Franklin Engine Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-205-8329?

NSN 5310-00-205-8329 has 1 cross-referenced part number: 19401 (Franklin Engine Co Inc).

What NSN replaces 5310-00-205-8329?

There are 7 known substitutes for 5310-00-205-8329: 5935-00-259-0823, 5330-00-406-5647, 3110-00-516-5289 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19401?

Key specifications for 19401: Thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Center Hole Shape Style: ROUND; Material: STEEL COMP 1010 OVERALL; Surface Treatment: CADMIUM OVERALL. 13 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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