PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55406Washer,shouldered

L3 Technologies, Inc. Div L3 Keo · NSN 5310-01-260-5785 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-260-5785 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-260-5785. Primary manufacturer part number: 55406.
Features
  • Washer,shouldered — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: L3 Technologies, Inc. Div L3 Keo
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-260-5785, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,shouldered
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersL3 Technologies, Inc. Div L3 Keo (CAGE 34228)
Technical Specifications
ParameterValue
NSN5310-01-260-5785
Primary Part Number55406
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div L3 Keo
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5342-00-418-66525540-6 INTERCHANGEABLE
Mount,resilient,weapon System
Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
5950-00-617-318655406 INTERCHANGEABLE
Cover,electrical Transformer
L3harris Technologies, Inc Div Space & Airborne Systems
5660-00-729-5536 INTERCHANGEABLE
Fencing,wire
5910-00-862-0117 INTERCHANGEABLE
Capacitor,fixed,electrolytic
6685-01-590-363355406 INTERCHANGEABLE
Thermometer,self-in
Generac Corp
Cross-Reference Index
Part NumberManufacturer
933B055406 L3 Technologies, Inc. Div L3 Keo (USA)
55406 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
Related Parts
5342-00-418-6652INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
5540-6
5950-00-617-3186INTERCHANGEABLE
COVER,ELECTRICAL TRANSFORMER
55406
5660-00-729-5536INTERCHANGEABLE
FENCING,WIRE
5910-00-862-0117INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
6685-01-590-3633INTERCHANGEABLE
THERMOMETER,SELF-IN
55406

Frequently Asked Questions

What is NSN 5310-01-260-5785?

NSN 5310-01-260-5785 is a Washer,shouldered, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-260-5785?

NSN 5310-01-260-5785 has 2 cross-referenced part numbers: 933B055406 (L3 Technologies, Inc. Div L3 Keo), 55406 (L3 Technologies, Inc. Div L3 Keo).

What NSN replaces 5310-01-260-5785?

There are 5 known substitutes for 5310-01-260-5785: 5342-00-418-6652, 5950-00-617-3186, 5660-00-729-5536 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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