PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M12133/8-4Washer,spring Tension

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-330-2353 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-330-2353 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-330-2353. Primary manufacturer part number: M12133/8-4.
Features
  • Washer,spring Tension — FSC 5310
  • Outside Diameter: 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
  • Hole Diameter: 0.148 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Style Designator: SPRING TENSION
  • Material: STEEL COMP 302 OVERALL
  • Surface Treatment: PASSIVATE 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 5310-01-330-2353, 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
NSN5310-01-330-2353
Primary Part NumberM12133/8-4
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 Diameter0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
Hole Diameter0.148 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorSPRING TENSION
MaterialSTEEL COMP 302 OVERALL
Surface TreatmentPASSIVATE OVERALL
Material Thickness0.006 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-01-311-0005 INTERCHANGEABLE
Washer,spring Tension
5310-01-315-3804 INTERCHANGEABLE
Washer,spring Tension
5310-01-335-3393 INTERCHANGEABLE
Washer,spring Tension
5310-01-355-0170 INTERCHANGEABLE
Washer,spring Tension
5310-01-355-2705 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
M12133/8-4 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
5310-01-335-3393INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-355-0170INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-355-2705INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-358-3668INTERCHANGEABLE
WASHER,SPRING TENSION
5310-01-372-0285INTERCHANGEABLE
WASHER,SPRING TENSION

Frequently Asked Questions

What is NSN 5310-01-330-2353?

NSN 5310-01-330-2353 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 5310-01-330-2353?

NSN 5310-01-330-2353 has 2 cross-referenced part numbers: M12133/8-4 (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 5310-01-330-2353?

There are 7 known substitutes for 5310-01-330-2353: 5310-01-311-0005, 5310-01-315-3804, 5310-01-335-3393 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M12133/8-4?

Key specifications for M12133/8-4: Outside Diameter: 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN; Hole Diameter: 0.148 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE 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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