PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MB10Washer,key

Skf Usa Inc. · NSN 5310-01-129-0603 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-129-0603 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-129-0603. Primary manufacturer part number: MB10.
Features
  • Washer,key — FSC 5310
  • External Key Quantity: 17
  • Material Thickness: 1.25 MILLIMETERS NOMINAL MM
  • Outside Diameter: 61.0 MILLIMETERS NOMINAL MM
  • Overall Distance Including Keys: 74.0 MILLIMETERS NOMINAL MM
  • Internal Prebent Key Width: 6.0 MILLIMETERS NOMINAL MM
  • Style Designator: KEY
  • Hole Diameter: 50.0 MILLIMETERS NOMINAL MM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,key, cataloged under National Stock Number 5310-01-129-0603, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-129-0603
Primary Part NumberMB10
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
External Key Quantity17
Material Thickness1.25 MILLIMETERS NOMINAL MM
Outside Diameter61.0 MILLIMETERS NOMINAL MM
Overall Distance Including Keys74.0 MILLIMETERS NOMINAL MM
Internal Prebent Key Width6.0 MILLIMETERS NOMINAL MM
Style DesignatorKEY
Hole Diameter50.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1670-00-687-515462B22084 INTERCHANGEABLE
Parachute,aircraft,deceleration
Warner Robins Air Logistics Center
5340-01-695-7692MB 10 INTERCHANGEABLE
Clamp,synchro
Harco Manufacturing Company Div Harco Manufacturing Company Inc
Cross-Reference Index
Part NumberManufacturer
MB10 PRIMARY Skf Usa Inc. (USA)
999F0762 PC 55 Circor Naval Solutions Llc Dba Warren Pumps (USA)
MB-10 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
1670-00-687-5154INTERCHANGEABLE
PARACHUTE,AIRCRAFT,DECELERATION
62B22084
5340-01-695-7692INTERCHANGEABLE
CLAMP,SYNCHRO
MB 10

Frequently Asked Questions

What is NSN 5310-01-129-0603?

NSN 5310-01-129-0603 is a Washer,key, manufactured by Skf Usa Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-129-0603?

NSN 5310-01-129-0603 has 3 cross-referenced part numbers: MB10 (Skf Usa Inc.), 999F0762 PC 55 (Circor Naval Solutions Llc Dba Warren Pumps), MB-10 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5310-01-129-0603?

There are 2 known substitutes for 5310-01-129-0603: 1670-00-687-5154, 5340-01-695-7692. Verify interchangeability with system specifications before substitution.

What are the specifications of MB10?

Key specifications for MB10: External Key Quantity: 17; Material Thickness: 1.25 MILLIMETERS NOMINAL MM; Outside Diameter: 61.0 MILLIMETERS NOMINAL MM; Overall Distance Including Keys: 74.0 MILLIMETERS NOMINAL MM. 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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