PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

434-0039-002Washer,flat

Seastrom Manufacturing Co Inc · NSN 5310-00-056-9589 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-056-9589 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-056-9589. Primary manufacturer part number: 434-0039-002.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: L-P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Thickness: 0.016 INCHES NOMINAL IN
  • Hole Diameter: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
  • Material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyhexamethylene Adipamide Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-056-9589, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Seastrom Manufacturing Co Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 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
NSN5310-00-056-9589
Primary Part Number434-0039-002
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationL-P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Overall Diameter0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Thickness0.016 INCHES NOMINAL IN
Hole Diameter0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
MaterialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3040-00-327-5150SM-B-187379 INTERCHANGEABLE
Shaft,shouldered
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-492-7306LP19B INTERCHANGEABLE
Strainer,sediment
Wisconsin Motors, Llc
4820-01-584-6456561-06 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
434-0039-002 PRIMARY Seastrom Manufacturing Co Inc (USA)
302-0644-030 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
950139-5 Zf Industrieantriebe Witten Gmbh (DEU)
950139-5 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
5610-6 Seastrom Manufacturing Co Inc (USA)
5610-6-16 Seastrom Manufacturing Co Inc (USA)
434-0039-002 Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial (USA)
950139-5 Litton Systems Inc. Div Navigation Systems Division (USA)
302-644-030 Rockwell-Collins Deutschlandgeschaftsbereich Derrockwell Internationnal Gmbh (DEU)
12-915-01-003 Northrop Grumman Systems Corporation (USA)
302-0644-030 Product Components Corporation (USA)
Related Parts
3040-00-327-5150INTERCHANGEABLE
SHAFT,SHOULDERED
SM-B-187379
4730-00-492-7306INTERCHANGEABLE
STRAINER,SEDIMENT
LP19B
4820-01-584-6456INTERCHANGEABLE
STEM,FLUID VALVE
561-06

Frequently Asked Questions

What is NSN 5310-00-056-9589?

NSN 5310-00-056-9589 is a Washer,flat, manufactured by Seastrom Manufacturing Co Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-056-9589?

NSN 5310-00-056-9589 has 11 cross-referenced part numbers: 434-0039-002 (Seastrom Manufacturing Co Inc), 302-0644-030 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 950139-5 (Zf Industrieantriebe Witten Gmbh), 950139-5 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 5610-6 (Seastrom Manufacturing Co Inc) and 6 more.

What NSN replaces 5310-00-056-9589?

There are 3 known substitutes for 5310-00-056-9589: 3040-00-327-5150, 4730-00-492-7306, 4820-01-584-6456. Verify interchangeability with system specifications before substitution.

What are the specifications of 434-0039-002?

Key specifications for 434-0039-002: Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: L-P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Diameter: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-056-9589 still in active supply?

NSN 5310-00-056-9589 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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