PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5056Washer,flat

Sparton Corporation Div Sparton Electronics · NSN 5310-00-919-3871 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-919-3871 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-919-3871. Primary manufacturer part number: 5056.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Material: PLASTIC OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.016 INCHES NOMINAL IN
  • Overall Diameter: 0.500 INCHES NOMINAL IN
  • Hole Diameter: 0.203 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-919-3871, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sparton Corporation Div Sparton Electronics. Government technical data includes 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-919-3871
Primary Part Number5056
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSparton Corporation Div Sparton Electronics
StatusCANCELLED
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
MaterialPLASTIC OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.016 INCHES NOMINAL IN
Overall Diameter0.500 INCHES NOMINAL IN
Hole Diameter0.203 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3020-00-223-2703 INTERCHANGEABLE
Chain,roller
3110-00-227-2802MS24461-6 INTERCHANGEABLE
Bearing,roller,needle
Sae International Dba Sae International
6810-00-262-8573 INTERCHANGEABLE
Ferrous Sulfate,heptahydrate
6810-00-262-8574 INTERCHANGEABLE
Calcium Fluoride
6810-00-264-6534 INTERCHANGEABLE
Ferrous Sulfate,heptahydrate
4730-00-287-1032AS5195B0402 INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
5331-00-323-28175-056 C0873-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
9905-00-347-783650-56 INTERCHANGEABLE
Plate,instruction
Goodrich Corporation
6150-00-524-45735056 INTERCHANGEABLE
Wiring Harness
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
4730-00-677-2547505-6 INTERCHANGEABLE
Elbow,tube
Lenz Inc Dba the Lenz Company
Cross-Reference Index
Part NumberManufacturer
5056 Sparton Corporation Div Sparton Electronics (USA)
Related Parts
3020-00-223-2703INTERCHANGEABLE
CHAIN,ROLLER
3110-00-227-2802INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS24461-6
6810-00-262-8573INTERCHANGEABLE
FERROUS SULFATE,HEPTAHYDRATE
6810-00-262-8574INTERCHANGEABLE
CALCIUM FLUORIDE
6810-00-264-6534INTERCHANGEABLE
FERROUS SULFATE,HEPTAHYDRATE
4730-00-287-1032INTERCHANGEABLE
ELBOW,PIPE TO TUBE
AS5195B0402
5331-00-323-2817INTERCHANGEABLE
O-RING
5-056 C0873-70
9905-00-347-7836INTERCHANGEABLE
PLATE,INSTRUCTION
50-56
6150-00-524-4573INTERCHANGEABLE
WIRING HARNESS
5056
4730-00-677-2547INTERCHANGEABLE
ELBOW,TUBE
505-6
5961-00-913-2121INTERCHANGEABLE
TRANSISTOR
4730-00-914-2880INTERCHANGEABLE
CLAMP,HOSE
5056

Frequently Asked Questions

What is NSN 5310-00-919-3871?

NSN 5310-00-919-3871 is a Washer,flat, manufactured by Sparton Corporation Div Sparton Electronics, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-919-3871?

NSN 5310-00-919-3871 has 1 cross-referenced part number: 5056 (Sparton Corporation Div Sparton Electronics).

What NSN replaces 5310-00-919-3871?

There are 12 known substitutes for 5310-00-919-3871: 3020-00-223-2703, 3110-00-227-2802, 6810-00-262-8573 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5056?

Key specifications for 5056: Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND; Material: PLASTIC OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-919-3871 still in active supply?

NSN 5310-00-919-3871 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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