PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50699Washer,flat

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5310-00-270-2123 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-270-2123 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-270-2123. Primary manufacturer part number: 50699.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Thickness: 0.031 INCHES NOMINAL IN
  • Hole Diameter: 0.173 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.375 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-270-2123, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-270-2123
Primary Part Number50699
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
MaterialSTEEL OVERALL
Thickness0.031 INCHES NOMINAL IN
Hole Diameter0.173 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Diameter0.375 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3455-00-023-4277 INTERCHANGEABLE
File,rotary
5315-00-336-8601201251 INTERCHANGEABLE
Pin,straight,headless
Clark Material Handling Company
5340-01-033-677850699 INTERCHANGEABLE
Rod End,threaded
L3 Technologies, Inc. Div L3 Keo
4820-01-037-5416431456001 INTERCHANGEABLE
Seat,valve
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
5920-01-056-5039 INTERCHANGEABLE
Fuseholder Assembly
5340-01-261-5979840-2-5 INTERCHANGEABLE
Clip,retaining
Stryker Corporation Div Use for Open Payments Only
2835-01-334-3177 INTERCHANGEABLE
Spool,matched
Cross-Reference Index
Part NumberManufacturer
50699 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
163747 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
84025 PRIMARY John Deer Consumer Products Inc (USA)
8 Ajax Magnethermec Corp Lectrodryer Div (USA)
201251 Evinrude Motors Product Group of Outboard Marine Corp (USA)
Related Parts
3455-00-023-4277INTERCHANGEABLE
FILE,ROTARY
5315-00-336-8601INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
201251
5340-01-033-6778INTERCHANGEABLE
ROD END,THREADED
50699
4820-01-037-5416INTERCHANGEABLE
SEAT,VALVE
431456001
5920-01-056-5039INTERCHANGEABLE
FUSEHOLDER ASSEMBLY
5340-01-261-5979INTERCHANGEABLE
CLIP,RETAINING
840-2-5
2835-01-334-3177INTERCHANGEABLE
SPOOL,MATCHED

Frequently Asked Questions

What is NSN 5310-00-270-2123?

NSN 5310-00-270-2123 is a Washer,flat, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-270-2123?

NSN 5310-00-270-2123 has 5 cross-referenced part numbers: 50699 (Lockheed Martin Corporation Div Rms - Mitchel Field), 163747 (Lockheed Martin Corporation Div Rms - Mitchel Field), 84025 (John Deer Consumer Products Inc), 8 (Ajax Magnethermec Corp Lectrodryer Div), 201251 (Evinrude Motors Product Group of Outboard Marine Corp).

What NSN replaces 5310-00-270-2123?

There are 7 known substitutes for 5310-00-270-2123: 3455-00-023-4277, 5315-00-336-8601, 5340-01-033-6778 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50699?

Key specifications for 50699: Material: STEEL OVERALL; Thickness: 0.031 INCHES NOMINAL IN; Hole Diameter: 0.173 INCHES NOMINAL IN; Center Hole Shape Style: ROUND. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-270-2123 still in active supply?

NSN 5310-00-270-2123 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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