PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

145381Washer,flat

Telemechanics Inc · NSN 5310-00-758-7801 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-758-7801 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-758-7801. Primary manufacturer part number: 145381.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Thickness: 0.026 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.506 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-758-7801, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5310-00-758-7801
Primary Part Number145381
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
MaterialSTEEL OVERALL
Thickness0.026 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Hole Diameter0.506 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Overall Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5840-00-211-6919145381 INTERCHANGEABLE
Generator,synch Del
Northrop Grumman Systems Corporation
4140-01-170-261814538-1 INTERCHANGEABLE
Impeller,fan,axial
Regal-Beloit Corporation Dba Fasco Group Div Cassville Division
5950-01-421-843814538-1 INTERCHANGEABLE
Transformer,current
Magnespec Inc
Cross-Reference Index
Part NumberManufacturer
145381 PRIMARY Telemechanics Inc (USA)
145381 American Telephone and Telegraph Co (USA)
145381 At and T Corp (USA)
Related Parts
5840-00-211-6919INTERCHANGEABLE
GENERATOR,SYNCH DEL
145381
4140-01-170-2618INTERCHANGEABLE
IMPELLER,FAN,AXIAL
14538-1
5950-01-421-8438INTERCHANGEABLE
TRANSFORMER,CURRENT
14538-1

Frequently Asked Questions

What is NSN 5310-00-758-7801?

NSN 5310-00-758-7801 is a Washer,flat, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-758-7801?

NSN 5310-00-758-7801 has 3 cross-referenced part numbers: 145381 (Telemechanics Inc), 145381 (American Telephone and Telegraph Co), 145381 (At and T Corp).

What NSN replaces 5310-00-758-7801?

There are 3 known substitutes for 5310-00-758-7801: 5840-00-211-6919, 4140-01-170-2618, 5950-01-421-8438. Verify interchangeability with system specifications before substitution.

What are the specifications of 145381?

Key specifications for 145381: Material: STEEL OVERALL; Thickness: 0.026 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Center Hole Shape Style: ROUND. 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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