PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M12133/8-13Washer,spring Tension

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-355-2705 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-355-2705 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-355-2705. Primary manufacturer part number: M12133/8-13.
Features
  • Washer,spring Tension — FSC 5310
  • Outside Diameter: 0.785 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
  • Hole Diameter: 0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
  • Material Thickness: 0.0103 INCHES MINIMUM AND 0.0123 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Style Designator: SPRING TENSION
  • Material: STEEL COMP 302 OVERALL
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 5310-01-355-2705, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-355-2705
Primary Part NumberM12133/8-13
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Outside Diameter0.785 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
Hole Diameter0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Material Thickness0.0103 INCHES MINIMUM AND 0.0123 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorSPRING TENSION
MaterialSTEEL COMP 302 OVERALL
Material Document and ClassificationMIL-S-5059,T 1/2 H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-01-311-0005 INTERCHANGEABLE
Washer,spring Tension
5310-01-315-3804 INTERCHANGEABLE
Washer,spring Tension
5310-01-330-2353 INTERCHANGEABLE
Washer,spring Tension
5310-01-335-3393 INTERCHANGEABLE
Washer,spring Tension
5310-01-355-0170 INTERCHANGEABLE
Washer,spring Tension
5310-01-358-3668 INTERCHANGEABLE
Washer,spring Tension
5310-01-372-0285 INTERCHANGEABLE
Washer,spring Tension
Cross-Reference Index
Part NumberManufacturer
M12133/8-13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-W-12133/8 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-01-311-0005INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-315-3804INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-330-2353INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-335-3393INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-355-0170INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-358-3668INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-372-0285INTERCHANGEABLE
WASHER,SPRING TENSION

Frequently Asked Questions

What is NSN 5310-01-355-2705?

NSN 5310-01-355-2705 is a Washer,spring Tension, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-355-2705?

NSN 5310-01-355-2705 has 2 cross-referenced part numbers: M12133/8-13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-W-12133/8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-01-355-2705?

There are 7 known substitutes for 5310-01-355-2705: 5310-01-311-0005, 5310-01-315-3804, 5310-01-330-2353 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M12133/8-13?

Key specifications for M12133/8-13: Overall Height: 0.129 INCHES NOMINAL IN; Outside Diameter: 0.785 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN; Hole Diameter: 0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN; Surface Treatment: PASSIVATE OVERALL. 9 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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