PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23-500-5Washer,recessed

Sigma Tek, Inc. · NSN 5310-01-149-0748 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-149-0748 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-149-0748. Primary manufacturer part number: 23-500-5.
Features
  • Washer,recessed — FSC 5310
  • Style Designator: RECESSED
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • Hole Diameter: 0.290 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Recess Angle: 90.0 DEGREES NOMINAL
  • Recess Diameter: 0.344 INCHES NOMINAL IN
  • Outside Diameter: 0.624 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-149-0748, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sigma Tek, Inc.. Government technical data includes 7 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-149-0748
Primary Part Number23-500-5
Item NameWasher,recessed
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSigma Tek, Inc.
StatusACTIVE
Style DesignatorRECESSED
Material Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.290 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024 OVERALL
Recess Angle90.0 DEGREES NOMINAL
Recess Diameter0.344 INCHES NOMINAL IN
Outside Diameter0.624 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-235-478228.4043 INTERCHANGEABLE
Voltmeter
Ideal Precision Meter Co Dba Ideal Precision Meter Co
5920-01-406-29600235005.XP INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
8030-01-630-6539235005 INTERCHANGEABLE
Antiseize Compound
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
23-500-5 PRIMARY Sigma Tek, Inc. (USA)
Related Parts
6625-00-235-4782INTERCHANGEABLE
VOLTMETER
28.4043
5920-01-406-2960INTERCHANGEABLE
FUSE,CARTRIDGE
0235005.XP
8030-01-630-6539INTERCHANGEABLE
ANTISEIZE COMPOUND
235005

Frequently Asked Questions

What is NSN 5310-01-149-0748?

NSN 5310-01-149-0748 is a Washer,recessed, manufactured by Sigma Tek, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-149-0748?

NSN 5310-01-149-0748 has 1 cross-referenced part number: 23-500-5 (Sigma Tek, Inc.).

What NSN replaces 5310-01-149-0748?

There are 3 known substitutes for 5310-01-149-0748: 6625-00-235-4782, 5920-01-406-2960, 8030-01-630-6539. Verify interchangeability with system specifications before substitution.

What are the specifications of 23-500-5?

Key specifications for 23-500-5: Style Designator: RECESSED; Material Thickness: 0.062 INCHES NOMINAL IN; Hole Diameter: 0.290 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2024 OVERALL. 7 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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