PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2689Washer,recessed

Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron · NSN 5310-01-023-1963 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-023-1963 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-023-1963. Primary manufacturer part number: 2689.
Features
  • Washer,recessed — FSC 5310
  • Recess Angle: 82.0 DEGREES NOMINAL
  • Hole Diameter: 0.191 INCHES NOMINAL IN
  • Material Document and Classification: MIL-M-20693,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
  • Style Designator: RECESSED
  • Material Thickness: 0.152 INCHES NOMINAL IN
  • Outside Diameter: 0.580 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyhexamethylene Amide Overall construction
General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-023-1963, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron. Government technical data includes 7 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
NSN5310-01-023-1963
Primary Part Number2689
Item NameWasher,recessed
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHalsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
StatusACTIVE
Recess Angle82.0 DEGREES NOMINAL
Hole Diameter0.191 INCHES NOMINAL IN
Material Document and ClassificationMIL-M-20693,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
Style DesignatorRECESSED
Material Thickness0.152 INCHES NOMINAL IN
Outside Diameter0.580 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-100-07352689 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
1650-00-513-48672689 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Goodrich Corporation
2920-00-540-83522689 INTERCHANGEABLE
Spark Plug
Champion Aerospace Llc
4920-01-067-62142689 INTERCHANGEABLE
Cable Assembly,indi
Mission Systems Davenport Inc.
6750-01-380-4404 INTERCHANGEABLE
Paper,photographic
Cross-Reference Index
Part NumberManufacturer
2689 PRIMARY Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
2689 Dialight Corporation (USA)
Related Parts
3110-00-100-0735INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2689
1650-00-513-4867INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
2689
2920-00-540-8352INTERCHANGEABLE
SPARK PLUG
2689
4920-01-067-6214INTERCHANGEABLE
CABLE ASSEMBLY,INDI
2689
6750-01-380-4404INTERCHANGEABLE
PAPER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5310-01-023-1963?

NSN 5310-01-023-1963 is a Washer,recessed, manufactured by Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-023-1963?

NSN 5310-01-023-1963 has 2 cross-referenced part numbers: 2689 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron), 2689 (Dialight Corporation).

What NSN replaces 5310-01-023-1963?

There are 5 known substitutes for 5310-01-023-1963: 3110-00-100-0735, 1650-00-513-4867, 2920-00-540-8352 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2689?

Key specifications for 2689: Recess Angle: 82.0 DEGREES NOMINAL; Hole Diameter: 0.191 INCHES NOMINAL IN; Material Document and Classification: MIL-M-20693,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL. 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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