PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-592Washer,flat

Brp Us Inc · NSN 5310-00-194-0656 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-194-0656 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-194-0656. Primary manufacturer part number: 21-592.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
  • Overall Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Hole Diameter: 0.511 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
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 5310-00-194-0656, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brp Us Inc. Government technical data includes 8 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-194-0656
Primary Part Number21-592
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBrp Us Inc
StatusCANCELLED
Thickness0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
Overall Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Hole Diameter0.511 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5360-00-915-4207SPR11-53 INTERCHANGEABLE
Spring,helical,compression
Johnson Controls Inc Control Products Div
5930-00-945-600921592 INTERCHANGEABLE
Switch,thermostatic
Sensata Technologies, Inc. Div Sensata Attleboro
4820-01-163-45997-113100213-5 INTERCHANGEABLE
Valve,safety Relief
The Boeing Company
4320-01-459-004921592 INTERCHANGEABLE
Parts Kit,centrifugal Pump
Hypro Llc
Cross-Reference Index
Part NumberManufacturer
21-592 PRIMARY Brp Us Inc (USA)
21-592 Outboard Marine Corp Johnson Motors Div (USA)
Related Parts
5360-00-915-4207INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
SPR11-53
5930-00-945-6009INTERCHANGEABLE
SWITCH,THERMOSTATIC
21592
4820-01-163-4599INTERCHANGEABLE
VALVE,SAFETY RELIEF
7-113100213-5
4320-01-459-0049INTERCHANGEABLE
PARTS KIT,CENTRIFUGAL PUMP
21592

Frequently Asked Questions

What is NSN 5310-00-194-0656?

NSN 5310-00-194-0656 is a Washer,flat, manufactured by Brp Us Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-194-0656?

NSN 5310-00-194-0656 has 2 cross-referenced part numbers: 21-592 (Brp Us Inc), 21-592 (Outboard Marine Corp Johnson Motors Div).

What NSN replaces 5310-00-194-0656?

There are 4 known substitutes for 5310-00-194-0656: 5360-00-915-4207, 5930-00-945-6009, 4820-01-163-4599 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-592?

Key specifications for 21-592: Thickness: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Overall Diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-194-0656 still in active supply?

NSN 5310-00-194-0656 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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