PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A965Washer,flat

Hartzell Propeller Llc · NSN 5310-00-867-3091 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-867-3091 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-867-3091. Primary manufacturer part number: A965.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.064 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • Hole Diameter: 0.438 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-867-3091, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartzell Propeller Llc. Government technical data includes 8 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-867-3091
Primary Part NumberA965
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHartzell Propeller Llc
StatusACTIVE
Thickness0.064 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Overall Diameter0.750 INCHES NOMINAL IN
Hole Diameter0.438 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2520-00-495-708818-12-1 INTERCHANGEABLE
Interlock
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
4920-00-907-5242A965 INTERCHANGEABLE
Fixture,fuel System Components,a
Ametek Inc Div Aerospace and Defense
Cross-Reference Index
Part NumberManufacturer
A965 Technic Aviation (FRA)
A965 PRIMARY Hartzell Propeller Llc (USA)
Related Parts
2520-00-495-7088INTERCHANGEABLE
INTERLOCK
18-12-1
4920-00-907-5242INTERCHANGEABLE
FIXTURE,FUEL SYSTEM COMPONENTS,A
A965

Frequently Asked Questions

What is NSN 5310-00-867-3091?

NSN 5310-00-867-3091 is a Washer,flat, manufactured by Hartzell Propeller Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-867-3091?

NSN 5310-00-867-3091 has 2 cross-referenced part numbers: A965 (Technic Aviation), A965 (Hartzell Propeller Llc).

What NSN replaces 5310-00-867-3091?

There are 2 known substitutes for 5310-00-867-3091: 2520-00-495-7088, 4920-00-907-5242. Verify interchangeability with system specifications before substitution.

What are the specifications of A965?

Key specifications for A965: Thickness: 0.064 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL; Overall Diameter: 0.750 INCHES NOMINAL IN; Hole Diameter: 0.438 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN. 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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