PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49740Washer,flat

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5310-00-599-8020 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-599-8020 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-599-8020. Primary manufacturer part number: 49740.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.062 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.875 INCHES NOMINAL IN
  • Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-599-8020, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-599-8020
Primary Part Number49740
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Thickness0.062 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.875 INCHES NOMINAL IN
Minimum Tensile Strength1500 POUNDS PER SQUARE INCH LBS
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Hole Diameter0.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-047-404263201 INTERCHANGEABLE
Seal,plain
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5133-00-266-9466 INTERCHANGEABLE
Drill,twist
4810-00-612-269649740 INTERCHANGEABLE
Valve,linear,directional Control
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5935-00-854-7009189302 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Rms - Mitchel Field
4710-01-349-593049740 INTERCHANGEABLE
Tube Assembly,metal
Williams International Co., L.l.c.
Cross-Reference Index
Part NumberManufacturer
49740 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5330-00-047-4042INTERCHANGEABLE
SEAL,PLAIN
63201
5133-00-266-9466INTERCHANGEABLE
DRILL,TWIST
4810-00-612-2696INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
49740
5935-00-854-7009INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
189302
4710-01-349-5930INTERCHANGEABLE
TUBE ASSEMBLY,METAL
49740

Frequently Asked Questions

What is NSN 5310-00-599-8020?

NSN 5310-00-599-8020 is a Washer,flat, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-599-8020?

NSN 5310-00-599-8020 has 1 cross-referenced part number: 49740 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5310-00-599-8020?

There are 5 known substitutes for 5310-00-599-8020: 5330-00-047-4042, 5133-00-266-9466, 4810-00-612-2696 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 49740?

Key specifications for 49740: Thickness: 0.062 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.875 INCHES NOMINAL IN. 9 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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