PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B20-2-4Washer,spring Tension

Allard Nazarian Group, Inc. Dba Granite State Manufacturing · NSN 5310-01-132-9813 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-132-9813 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-132-9813. Primary manufacturer part number: B20-2-4.
Features
  • Washer,spring Tension — FSC 5310
  • Hole Diameter: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
  • Material Thickness: 0.060 INCHES NOMINAL IN
  • Style Designator: SPRING TENSION
  • Outside Diameter: 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN
  • Material: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • 1 verified cross-reference
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 5310-01-132-9813, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allard Nazarian Group, Inc. Dba Granite State Manufacturing. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-132-9813
Primary Part NumberB20-2-4
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAllard Nazarian Group, Inc. Dba Granite State Manufacturing
StatusACTIVE
Hole Diameter1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN
Material Thickness0.060 INCHES NOMINAL IN
Style DesignatorSPRING TENSION
Outside Diameter3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM IN
MaterialSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-087-5533 INTERCHANGEABLE
Relay,thermal
5930-01-247-1377 INTERCHANGEABLE
Switch,sensitive
4820-01-406-6710B2024 INTERCHANGEABLE
Adjusting Screw,valve
Dante Valve Company
Cross-Reference Index
Part NumberManufacturer
B20-2-4 PRIMARY Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
Related Parts
5945-00-087-5533INTERCHANGEABLE
RELAY,THERMAL
5930-01-247-1377INTERCHANGEABLE
SWITCH,SENSITIVE
4820-01-406-6710INTERCHANGEABLE
ADJUSTING SCREW,VALVE
B2024

Frequently Asked Questions

What is NSN 5310-01-132-9813?

NSN 5310-01-132-9813 is a Washer,spring Tension, manufactured by Allard Nazarian Group, Inc. Dba Granite State Manufacturing, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-132-9813?

NSN 5310-01-132-9813 has 1 cross-referenced part number: B20-2-4 (Allard Nazarian Group, Inc. Dba Granite State Manufacturing).

What NSN replaces 5310-01-132-9813?

There are 3 known substitutes for 5310-01-132-9813: 5945-00-087-5533, 5930-01-247-1377, 4820-01-406-6710. Verify interchangeability with system specifications before substitution.

What are the specifications of B20-2-4?

Key specifications for B20-2-4: Overall Height: 0.422 INCHES NOMINAL IN; Hole Diameter: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN; Material Thickness: 0.060 INCHES NOMINAL IN; Style Designator: SPRING TENSION. 7 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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