PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4814Washer,lock

Telemechanics Inc · NSN 5310-00-637-2511 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-637-2511 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-637-2511. Primary manufacturer part number: 4814.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: NICKEL OVERALL
  • Hole Diameter: 0.328 INCHES NOMINAL IN
  • Material Thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
  • Outside Diameter: 0.516 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 2 verified cross-references
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 5310-00-637-2511, 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 6 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
NSN5310-00-637-2511
Primary Part Number4814
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
MaterialSTEEL OVERALL
Surface TreatmentNICKEL OVERALL
Hole Diameter0.328 INCHES NOMINAL IN
Material Thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
Outside Diameter0.516 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5905-00-232-18481960919-1 INTERCHANGEABLE
Resistor,electrical
Honeywell Intl Inc Defense Avionics Systems
5999-00-437-6493531587-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon
5330-00-465-556502420481400 INTERCHANGEABLE
Seal,plain Encased
Freudenberg-Nok General Partnership Dba Fredenberg-Nok Seals Division
5310-00-489-7159 INTERCHANGEABLE
Locknut
4820-00-825-38500548-A01-KM0100 INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5905-01-186-6831 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6240-01-187-68785S5149 INTERCHANGEABLE
Lamp,incandescent
Caterpillar Inc Div Caterpillar Defense
6685-01-436-89914814 INTERCHANGEABLE
Humidity Element,resistance
Newport Scientific Inc Hygrodynamic Products Div
Cross-Reference Index
Part NumberManufacturer
4814 PRIMARY Telemechanics Inc (USA)
4814 At and T Corp (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
5905-00-232-1848INTERCHANGEABLE
RESISTOR,ELECTRICAL
1960919-1
5999-00-437-6493INTERCHANGEABLE
DELAY LINE
531587-1
5330-00-465-5565INTERCHANGEABLE
SEAL,PLAIN ENCASED
02420481400
5310-00-489-7159INTERCHANGEABLE
LOCKNUT
4820-00-825-3850INTERCHANGEABLE
VALVE,SAFETY RELIEF
0548-A01-KM0100
5905-01-186-6831INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6240-01-187-6878INTERCHANGEABLE
LAMP,INCANDESCENT
5S5149
6685-01-436-8991INTERCHANGEABLE
HUMIDITY ELEMENT,RESISTANCE
4814

Frequently Asked Questions

What is NSN 5310-00-637-2511?

NSN 5310-00-637-2511 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 5310-00-637-2511?

NSN 5310-00-637-2511 has 2 cross-referenced part numbers: 4814 (Telemechanics Inc), 4814 (At and T Corp).

What NSN replaces 5310-00-637-2511?

There are 9 known substitutes for 5310-00-637-2511: 5940-00-143-4771, 5905-00-232-1848, 5999-00-437-6493 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4814?

Key specifications for 4814: Material: STEEL OVERALL; Surface Treatment: NICKEL OVERALL; Hole Diameter: 0.328 INCHES NOMINAL IN; Material Thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-637-2511 still in active supply?

NSN 5310-00-637-2511 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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