PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12Z2020-408Nut,sheet Spring

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-00-208-2542 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-2542 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-2542. Primary manufacturer part number: 12Z2020-408.
Features
  • Nut,sheet Spring — FSC 5310
  • Nut Style: SHEET SPRING
  • Material: STEEL COMP 1060 OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE
  • Nut Width: 0.531 INCHES NOMINAL IN
  • Material Document and Classification: MIL-S-16788 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: ZINC OVERALL
  • Mating Member Diameter Accommodated: 0.164 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Nut,sheet Spring, cataloged under National Stock Number 5310-00-208-2542, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 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: Active.

Technical Specifications
ParameterValue
NSN5310-00-208-2542
Primary Part Number12Z2020-408
Item NameNut,sheet Spring
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Nut StyleSHEET SPRING
MaterialSTEEL COMP 1060 OVERALL
Nondefinitive Spec/std Data1 TYPE
Nut Width0.531 INCHES NOMINAL IN
Material Document and ClassificationMIL-S-16788 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentZINC OVERALL
Mating Member Diameter Accommodated0.164 INCHES NOMINAL IN
Material Thickness0.017 INCHES NOMINAL IN
Nut Length1.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-044-5107 INTERCHANGEABLE
Nut,sheet Spring
5310-00-275-3536 INTERCHANGEABLE
Nut,sheet Spring
5310-00-275-35371136203 INTERCHANGEABLE
Nut,sheet Spring
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-433-1393 INTERCHANGEABLE
Nut,sheet Spring
Cross-Reference Index
Part NumberManufacturer
MILN3337TYPE1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
12Z2020-408 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5310-00-044-5107INTERCHANGEABLE
NUT,SHEET SPRING
5310-00-275-3536INTERCHANGEABLE
NUT,SHEET SPRING
5310-00-275-3537INTERCHANGEABLE
NUT,SHEET SPRING
1136203
5310-00-433-1393INTERCHANGEABLE
NUT,SHEET SPRING

Frequently Asked Questions

What is NSN 5310-00-208-2542?

NSN 5310-00-208-2542 is a Nut,sheet Spring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-208-2542?

NSN 5310-00-208-2542 has 2 cross-referenced part numbers: MILN3337TYPE1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 12Z2020-408 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-00-208-2542?

There are 4 known substitutes for 5310-00-208-2542: 5310-00-044-5107, 5310-00-275-3536, 5310-00-275-3537 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12Z2020-408?

Key specifications for 12Z2020-408: Nut Style: SHEET SPRING; Material: STEEL COMP 1060 OVERALL; Nondefinitive Spec/std Data: 1 TYPE; Nut Width: 0.531 INCHES NOMINAL IN. 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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