PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23115Washer,spring Tension

Waltham Clock Co Inc · NSN 5310-00-515-7950 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-515-7950 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-515-7950. Primary manufacturer part number: 23115.
Features
  • Washer,spring Tension — FSC 5310
  • Material: COPPER ALLOY OVERALL
  • Hole Diameter: 5.090 MILLIMETERS MINIMUM AND 5.110 MILLIMETERS MAXIMUM MM
  • Outside Diameter: 8.39 MILLIMETERS MINIMUM AND 8.41 MILLIMETERS MAXIMUM MM
  • Material Thickness: 0.035 MILLIMETERS MINIMUM AND 0.045 MILLIMETERS MAXIMUM MM
  • 1 verified cross-reference
  • Primary manufacturer: Waltham Clock Co Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-00-515-7950, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Waltham Clock Co Inc. Government technical data includes 4 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-515-7950
Primary Part Number23115
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWaltham Clock Co Inc
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Hole Diameter5.090 MILLIMETERS MINIMUM AND 5.110 MILLIMETERS MAXIMUM MM
Outside Diameter8.39 MILLIMETERS MINIMUM AND 8.41 MILLIMETERS MAXIMUM MM
Material Thickness0.035 MILLIMETERS MINIMUM AND 0.045 MILLIMETERS MAXIMUM MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2640-00-052-0867 INTERCHANGEABLE
Valve,pneumatic Tire
4710-00-409-1933 INTERCHANGEABLE
Pipe,sewer Drain
3010-00-706-110923115 INTERCHANGEABLE
Coupling Half,shaft
Rexnord Industries, Llc Div Couplings Division
5905-00-892-6675 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
5962-01-138-1649LM124AJ INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
5975-01-444-333723115 INTERCHANGEABLE
Conduit,metal,flexible
Electri-Flex Co
Cross-Reference Index
Part NumberManufacturer
23115 Waltham Clock Co Inc (USA)
Related Parts
2640-00-052-0867INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
4710-00-409-1933INTERCHANGEABLE
PIPE,SEWER DRAIN
3010-00-706-1109INTERCHANGEABLE
COUPLING HALF,SHAFT
23115
5905-00-892-6675INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
5962-01-138-1649INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM124AJ
5975-01-444-3337INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
23115

Frequently Asked Questions

What is NSN 5310-00-515-7950?

NSN 5310-00-515-7950 is a Washer,spring Tension, manufactured by Waltham Clock Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-515-7950?

NSN 5310-00-515-7950 has 1 cross-referenced part number: 23115 (Waltham Clock Co Inc).

What NSN replaces 5310-00-515-7950?

There are 6 known substitutes for 5310-00-515-7950: 2640-00-052-0867, 4710-00-409-1933, 3010-00-706-1109 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23115?

Key specifications for 23115: Overall Height: 0.600 MILLIMETERS MINIMUM AND 0.900 MILLIMETERS MAXIMUM MM; Material: COPPER ALLOY OVERALL; Hole Diameter: 5.090 MILLIMETERS MINIMUM AND 5.110 MILLIMETERS MAXIMUM MM; Outside Diameter: 8.39 MILLIMETERS MINIMUM AND 8.41 MILLIMETERS MAXIMUM MM. 5 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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