PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123W10969-11Washer,flat

Northrop Grumman Systems Corporation · NSN 5310-01-219-5408 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-219-5408 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-219-5408. Primary manufacturer part number: 123W10969-11.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material: STEEL COMP 4130 OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.640 INCHES NOMINAL IN
  • Overall Diameter: 1.183 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-219-5408, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-219-5408
Primary Part Number123W10969-11
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusCANCELLED
Center Hole Shape StyleROUND
MaterialSTEEL COMP 4130 OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Hole Diameter0.640 INCHES NOMINAL IN
Overall Diameter1.183 INCHES MINIMUM AND 1.208 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thickness0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-035-8708 INTERCHANGEABLE
Contact,electrical
5360-00-072-090320129 INTERCHANGEABLE
Spring,helical,extension
Unipress Corporation
3110-00-100-6171 INTERCHANGEABLE
Ball,bearing
5133-00-228-1378 INTERCHANGEABLE
Drill,twist
5930-00-508-0562 INTERCHANGEABLE
Switch,rotary
5950-00-645-309020129 INTERCHANGEABLE
Transformer,power Autotransforme
Freed Transformer Co
5342-00-998-2817 INTERCHANGEABLE
Boot,drain Tub
7025-01-063-60395200-357 INTERCHANGEABLE
Intermediate Drive Assembly
Raytheon Company Div Rmd Strategic
5360-01-196-680120129 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
1650-01-219-095720129 INTERCHANGEABLE
Cap Assembly,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
123W10969-11 Northrop Grumman Systems Corporation (USA)
20-129 General Dynamics Mission Systems, Inc. Dba Gdms (USA)
123W10969-11 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5999-00-035-8708INTERCHANGEABLE
CONTACT,ELECTRICAL
5360-00-072-0903INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
20129
3110-00-100-6171INTERCHANGEABLE
BALL,BEARING
5133-00-228-1378INTERCHANGEABLE
DRILL,TWIST
5930-00-508-0562INTERCHANGEABLE
SWITCH,ROTARY
5950-00-645-3090INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
20129
5342-00-998-2817INTERCHANGEABLE
BOOT,DRAIN TUB
7025-01-063-6039INTERCHANGEABLE
INTERMEDIATE DRIVE ASSEMBLY
5200-357
5360-01-196-6801INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20129
1650-01-219-0957INTERCHANGEABLE
CAP ASSEMBLY,PUMP
20129
5360-01-334-9940INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20129
5935-01-342-3115INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
G350543-1

Frequently Asked Questions

What is NSN 5310-01-219-5408?

NSN 5310-01-219-5408 is a Washer,flat, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-219-5408?

NSN 5310-01-219-5408 has 3 cross-referenced part numbers: 123W10969-11 (Northrop Grumman Systems Corporation), 20-129 (General Dynamics Mission Systems, Inc. Dba Gdms), 123W10969-11 (Northrop Grumman Systems Corporation).

What NSN replaces 5310-01-219-5408?

There are 12 known substitutes for 5310-01-219-5408: 5999-00-035-8708, 5360-00-072-0903, 3110-00-100-6171 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 123W10969-11?

Key specifications for 123W10969-11: Center Hole Shape Style: ROUND; Material: STEEL COMP 4130 OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-219-5408 still in active supply?

NSN 5310-01-219-5408 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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