PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

309659Washer,flat

Parker-Hannifin Corporation Div Hydraulic Accumulator Division · NSN 5310-01-281-9128 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-281-9128 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-281-9128. Primary manufacturer part number: 309659.
Features
  • Washer,flat — FSC 5310
  • 1 verified cross-reference
  • Primary manufacturer: Parker-Hannifin Corporation Div Hydraulic Accumulator Division
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-281-9128, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Div Hydraulic Accumulator Division. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersParker-Hannifin Corporation Div Hydraulic Accumulator Division (CAGE 26337)
Technical Specifications
ParameterValue
NSN5310-01-281-9128
Primary Part Number309659
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Div Hydraulic Accumulator Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6680-01-337-35866426422 INTERCHANGEABLE
Transmitter,liquid Quantity
Allison Transmission Inc Dba Allison Transmission, Inc
6515-01-592-2320 INTERCHANGEABLE
Syringe,hypodermic
Cross-Reference Index
Part NumberManufacturer
309659 PRIMARY Parker-Hannifin Corporation Div Hydraulic Accumulator Division (USA)
Related Parts
6680-01-337-3586INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
6426422
6515-01-592-2320INTERCHANGEABLE
SYRINGE,HYPODERMIC

Frequently Asked Questions

What is NSN 5310-01-281-9128?

NSN 5310-01-281-9128 is a Washer,flat, manufactured by Parker-Hannifin Corporation Div Hydraulic Accumulator Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-281-9128?

NSN 5310-01-281-9128 has 1 cross-referenced part number: 309659 (Parker-Hannifin Corporation Div Hydraulic Accumulator Division).

What NSN replaces 5310-01-281-9128?

There are 2 known substitutes for 5310-01-281-9128: 6680-01-337-3586, 6515-01-592-2320. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com