PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2669Washer,lock

Telemechanics Inc · NSN 5310-00-638-4317 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-638-4317 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-638-4317. Primary manufacturer part number: 2669.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Surface Treatment: NICKEL OVERALL
  • Hole Diameter: 0.188 INCHES NOMINAL IN
  • Outside Diameter: 0.344 INCHES NOMINAL IN
  • Heat Treatment: AS FABRICATED
  • Material Thickness: 0.047 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-638-4317, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-638-4317
Primary Part Number2669
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
MaterialSTEEL OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface TreatmentNICKEL OVERALL
Hole Diameter0.188 INCHES NOMINAL IN
Outside Diameter0.344 INCHES NOMINAL IN
Heat TreatmentAS FABRICATED
Material Thickness0.047 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-011-4649 INTERCHANGEABLE
Washer,lock
5120-00-030-27385120-00-030-2738 INTERCHANGEABLE
Wrench,drain Plug
General Services Administration Federal Supply Service
5950-00-241-1790 INTERCHANGEABLE
Transformer,radio Frequency
5985-00-501-64662669 INTERCHANGEABLE
Attenuator,variable
Meggitt (new Hampshire), Inc
4940-00-542-0002MX1761U INTERCHANGEABLE
Enclosure,electromagnetic Shield
Joint Electronics Type Designation System
5310-00-857-56942669 INTERCHANGEABLE
Washer,shouldered
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3120-01-239-54162669 INTERCHANGEABLE
Roller,linear-Rotary Motion
Lebus International, Inc.
2940-01-257-159342669 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
5330-01-435-7230 INTERCHANGEABLE
Seal,plain
Cross-Reference Index
Part NumberManufacturer
2669 At and T Corp (USA)
2669 PRIMARY Telemechanics Inc (USA)
Related Parts
5310-00-011-4649INTERCHANGEABLE
WASHER,LOCK
5120-00-030-2738INTERCHANGEABLE
WRENCH,DRAIN PLUG
5120-00-030-2738
5950-00-241-1790INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5985-00-501-6466INTERCHANGEABLE
ATTENUATOR,VARIABLE
2669
4940-00-542-0002INTERCHANGEABLE
ENCLOSURE,ELECTROMAGNETIC SHIELD
MX1761U
5310-00-857-5694INTERCHANGEABLE
WASHER,SHOULDERED
2669
3120-01-239-5416INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
2669
2940-01-257-1593INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42669
5330-01-435-7230INTERCHANGEABLE
SEAL,PLAIN

Frequently Asked Questions

What is NSN 5310-00-638-4317?

NSN 5310-00-638-4317 is a Washer,lock, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-638-4317?

NSN 5310-00-638-4317 has 2 cross-referenced part numbers: 2669 (At and T Corp), 2669 (Telemechanics Inc).

What NSN replaces 5310-00-638-4317?

There are 9 known substitutes for 5310-00-638-4317: 5310-00-011-4649, 5120-00-030-2738, 5950-00-241-1790 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2669?

Key specifications for 2669: Material: STEEL OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Surface Treatment: NICKEL OVERALL; Hole Diameter: 0.188 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-638-4317 still in active supply?

NSN 5310-00-638-4317 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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