PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3642Washer,flat

Telemechanics Inc · NSN 5310-00-186-7540 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-7540 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-7540. Primary manufacturer part number: 3642.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 0.312 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 5310-00-186-7540, 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 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-186-7540
Primary Part Number3642
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Overall Diameter0.312 INCHES NOMINAL IN
Thickness0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
Hole Diameter0.187 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-018-39873642 INTERCHANGEABLE
Valve,pneumatic Tank
Schrader-Bridgeport International Inc Dba Schrader Automotive
4820-00-114-1096 INTERCHANGEABLE
Stem,fluid Valve
5930-00-127-93173642 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
2945-00-328-339803S03753 INTERCHANGEABLE
Filter,fluid
Falls Filtration Technologies, Inc.
3610-00-457-8704 INTERCHANGEABLE
Bottle and Cap Assembly
6640-00-494-3846 INTERCHANGEABLE
Cleaner,instrument Tubing
5340-00-733-50143642 INTERCHANGEABLE
Retainer,helical Compression Spr
L3 Technologies, Inc. Div L3 Keo
5342-00-862-7169 INTERCHANGEABLE
Bracket,filter Lock
5940-00-983-6053 INTERCHANGEABLE
Terminal Board
6510-01-101-893666024628 INTERCHANGEABLE
Dressing,occlusive,adhesive
Smith & Nephew Inc. Dba Smith and Nephew Wound and Mgt Div Wound Management
Cross-Reference Index
Part NumberManufacturer
3642 Telemechanics Inc (USA)
3642 American Telephone and Telegraph Co (USA)
3642 At and T Corp (USA)
Related Parts
4820-00-018-3987INTERCHANGEABLE
VALVE,PNEUMATIC TANK
3642
4820-00-114-1096INTERCHANGEABLE
STEM,FLUID VALVE
5930-00-127-9317INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
3642
2945-00-328-3398INTERCHANGEABLE
FILTER,FLUID
03S03753
3610-00-457-8704INTERCHANGEABLE
BOTTLE AND CAP ASSEMBLY
6640-00-494-3846INTERCHANGEABLE
CLEANER,INSTRUMENT TUBING
5340-00-733-5014INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
3642
5342-00-862-7169INTERCHANGEABLE
BRACKET,FILTER LOCK
5940-00-983-6053INTERCHANGEABLE
TERMINAL BOARD
6510-01-101-8936INTERCHANGEABLE
DRESSING,OCCLUSIVE,ADHESIVE
66024628
6625-01-249-3381INTERCHANGEABLE
SLOTTED LINE,WAVEGUIDE
6515-01-375-4113INTERCHANGEABLE
BAG,OSTOMY
3642

Frequently Asked Questions

What is NSN 5310-00-186-7540?

NSN 5310-00-186-7540 is a Washer,flat, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-7540?

NSN 5310-00-186-7540 has 3 cross-referenced part numbers: 3642 (Telemechanics Inc), 3642 (American Telephone and Telegraph Co), 3642 (At and T Corp).

What NSN replaces 5310-00-186-7540?

There are 12 known substitutes for 5310-00-186-7540: 4820-00-018-3987, 4820-00-114-1096, 5930-00-127-9317 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3642?

Key specifications for 3642: Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Center Hole Shape Style: ROUND. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-7540 still in active supply?

NSN 5310-00-186-7540 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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