PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

328C119H04Washer,flat

Northrop Grumman Support Services Corp · NSN 5310-00-990-8607 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-990-8607 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-990-8607. Primary manufacturer part number: 328C119H04.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Thickness: 0.016 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.250 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-990-8607, 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 Support Services Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-990-8607
Primary Part Number328C119H04
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Support Services Corp
StatusCANCELLED
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Thickness0.016 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Diameter0.250 INCHES NOMINAL IN
Hardness Rating111.0 ROCKWELL R MINIMUM AND 118.0 ROCKWELL R MAXIMUM
Minimum Tensile Strength7000 POUNDS PER SQUARE INCH LBS
Hole Diameter0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5950-00-409-3459659-3 INTERCHANGEABLE
Coil,radio Frequency
Caddell Burns Manufacturing Co Inc
4820-00-650-0245E-3547 INTERCHANGEABLE
Diaphragm,valve,flat
King Engineering Corporation Dba King-Gage Systems
6515-01-561-2543A9385 INTERCHANGEABLE
Stockinet,surgical
Performance Health Supply, Llc Dba Sammons Preston Rolyan
Cross-Reference Index
Part NumberManufacturer
328C119H04 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
328C119H04 PRIMARY Northrop Grumman Support Services Corp (USA)
1945391-2 PRIMARY Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div (USA)
328C119H04 Westinghouse Electric Corp (USA)
1945391-2 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
6593 Birnbach Co Inc (USA)
Related Parts
5950-00-409-3459INTERCHANGEABLE
COIL,RADIO FREQUENCY
659-3
4820-00-650-0245INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
E-3547
6515-01-561-2543INTERCHANGEABLE
STOCKINET,SURGICAL
A9385

Frequently Asked Questions

What is NSN 5310-00-990-8607?

NSN 5310-00-990-8607 is a Washer,flat, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-990-8607?

NSN 5310-00-990-8607 has 6 cross-referenced part numbers: 328C119H04 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 328C119H04 (Northrop Grumman Support Services Corp), 1945391-2 (Honeywell Intl Inc Defense Avionics Systems Former Test Systems Div), 328C119H04 (Westinghouse Electric Corp), 1945391-2 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems) and 1 more.

What NSN replaces 5310-00-990-8607?

There are 3 known substitutes for 5310-00-990-8607: 5950-00-409-3459, 4820-00-650-0245, 6515-01-561-2543. Verify interchangeability with system specifications before substitution.

What are the specifications of 328C119H04?

Key specifications for 328C119H04: Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: PLASTIC POLYAMIDE NYLON OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-990-8607 still in active supply?

NSN 5310-00-990-8607 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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