PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6597Washer,flat

Birnbach Co Inc · NSN 5310-00-441-8707 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-441-8707 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-441-8707. Primary manufacturer part number: 6597.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: MIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thickness: 0.063 INCHES NOMINAL IN
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.281 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyhexamethylene Amide Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-441-8707, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-441-8707
Primary Part Number6597
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBirnbach Co Inc
StatusACTIVE
Material Document and ClassificationMIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Thickness0.063 INCHES NOMINAL IN
Overall Diameter0.625 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.281 INCHES NOMINAL IN
Center Hole Shape StyleROUND
MaterialPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5985-00-385-1643 INTERCHANGEABLE
Antenna Control Subassembly
4820-01-215-12156597 INTERCHANGEABLE
Valve,globe
Imi Cash Valve Inc
6145-01-256-59726597 INTERCHANGEABLE
Cable,special Purpose,electrical
K and J Associates Inc
5340-01-513-31256597 INTERCHANGEABLE
Handle,crank
Republic Machinery Co Inc Dba Republic Lagun Machine Tool Co
5330-01-577-47566597 INTERCHANGEABLE
Seal,plain
Cr Services
Cross-Reference Index
Part NumberManufacturer
6597 PRIMARY Birnbach Co Inc (USA)
AED33519-1 Honeywell Aerospatiale Inc (CAN)
Related Parts
5985-00-385-1643INTERCHANGEABLE
ANTENNA CONTROL SUBASSEMBLY
4820-01-215-1215INTERCHANGEABLE
VALVE,GLOBE
6597
6145-01-256-5972INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
6597
5340-01-513-3125INTERCHANGEABLE
HANDLE,CRANK
6597
5330-01-577-4756INTERCHANGEABLE
SEAL,PLAIN
6597

Frequently Asked Questions

What is NSN 5310-00-441-8707?

NSN 5310-00-441-8707 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 5310-00-441-8707?

NSN 5310-00-441-8707 has 2 cross-referenced part numbers: 6597 (Birnbach Co Inc), AED33519-1 (Honeywell Aerospatiale Inc).

What NSN replaces 5310-00-441-8707?

There are 5 known substitutes for 5310-00-441-8707: 5985-00-385-1643, 4820-01-215-1215, 6145-01-256-5972 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6597?

Key specifications for 6597: Material Document and Classification: MIL-M-20693 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Thickness: 0.063 INCHES NOMINAL IN; Overall Diameter: 0.625 INCHES NOMINAL IN; Peripheral Shape Style: ROUND. 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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