PartsTable TECHNICAL DATA SHEET
SEPTEMBER 2026Technical Data Sheet

6592Washer,flat

Birnbach Co Inc · NSN 5310-00-839-8591 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-839-8591 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-839-8591. Primary manufacturer part number: 6592.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Overall Diameter: 0.250 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Thickness: 0.016 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 5310-00-839-8591, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Birnbach Co Inc. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-839-8591
Primary Part Number6592
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBirnbach Co Inc
StatusACTIVE
Material Document and ClassificationMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Overall Diameter0.250 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Thickness0.016 INCHES NOMINAL IN
Hole Diameter0.096 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5950-00-312-4321659-2 INTERCHANGEABLE
Coil,radio Frequency
Caddell Burns Manufacturing Co Inc
5330-00-325-7178 INTERCHANGEABLE
Seal,wheel Oil
2815-00-333-148314U1016PCDA6592 INTERCHANGEABLE
Cap,oil Relief Valv
Naval Ship Systems Command
4310-00-413-26536592 INTERCHANGEABLE
Ring Set,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5330-00-741-1430 INTERCHANGEABLE
Seal,oil,hub Bearing
5330-01-044-2330659-2-150PSI INTERCHANGEABLE
Gasket,spiral Wound
J.o. Galloup Company Dba Smith Instrument Div Dba: Galloup, Merlo Energy, Smith Instrument
5331-01-207-14906592 INTERCHANGEABLE
O-Ring
Marine Travelift Inc
3110-01-241-0681659-2 INTERCHANGEABLE
Ball,bearing
Brunswick Corp Us Marine Div
Cross-Reference Index
Part NumberManufacturer
6592 PRIMARY Birnbach Co Inc (USA)
Related Parts
5950-00-312-4321INTERCHANGEABLE
COIL,RADIO FREQUENCY
659-2
5330-00-325-7178INTERCHANGEABLE
SEAL,WHEEL OIL
2815-00-333-1483INTERCHANGEABLE
CAP,OIL RELIEF VALV
14U1016PCDA6592
4310-00-413-2653INTERCHANGEABLE
RING SET,PISTON
6592
5330-00-741-1430INTERCHANGEABLE
SEAL,OIL,HUB BEARING
5330-01-044-2330INTERCHANGEABLE
GASKET,SPIRAL WOUND
659-2-150PSI
5331-01-207-1490INTERCHANGEABLE
O-RING
6592
3110-01-241-0681INTERCHANGEABLE
BALL,BEARING
659-2

Frequently Asked Questions

What is NSN 5310-00-839-8591?

NSN 5310-00-839-8591 is a Washer,flat, manufactured by Birnbach Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-839-8591?

NSN 5310-00-839-8591 has 1 cross-referenced part number: 6592 (Birnbach Co Inc).

What NSN replaces 5310-00-839-8591?

There are 8 known substitutes for 5310-00-839-8591: 5950-00-312-4321, 5330-00-325-7178, 2815-00-333-1483 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6592?

Key specifications for 6592: Material Document and Classification: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: PLASTIC POLYAMIDE NYLON OVERALL; Overall Diameter: 0.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR. 8 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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