PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12H49Washer,flat

Link-Belt Cranes, L.p., Lllp · NSN 5310-01-186-0683 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-186-0683 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-186-0683. Primary manufacturer part number: 12H49.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.250 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 6.000 INCHES MINIMUM AND 6.015 INCHES MAXIMUM IN
  • Width Across Flats: 10.000 INCHES NOMINAL IN
  • Peripheral Shape Style: OCTAGON
  • Center Hole Shape Style: ROUND
  • 2 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-186-0683, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Link-Belt Cranes, L.p., Lllp. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-186-0683
Primary Part Number12H49
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLink-Belt Cranes, L.p., Lllp
StatusACTIVE
Thickness0.250 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter6.000 INCHES MINIMUM AND 6.015 INCHES MAXIMUM IN
Width Across Flats10.000 INCHES NOMINAL IN
Peripheral Shape StyleOCTAGON
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-01-074-884812-H-0049 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
Cross-Reference Index
Part NumberManufacturer
12H49 PRIMARY Link-Belt Cranes, L.p., Lllp (USA)
12H49-A Link-Belt Cranes, L.p., Lllp (USA)
Related Parts
5930-01-074-8848INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
12-H-0049

Frequently Asked Questions

What is NSN 5310-01-186-0683?

NSN 5310-01-186-0683 is a Washer,flat, manufactured by Link-Belt Cranes, L.p., Lllp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-186-0683?

NSN 5310-01-186-0683 has 2 cross-referenced part numbers: 12H49 (Link-Belt Cranes, L.p., Lllp), 12H49-A (Link-Belt Cranes, L.p., Lllp).

What NSN replaces 5310-01-186-0683?

There is 1 known substitute for 5310-01-186-0683: 5930-01-074-8848. Verify interchangeability with system specifications before substitution.

What are the specifications of 12H49?

Key specifications for 12H49: Thickness: 0.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Hole Diameter: 6.000 INCHES MINIMUM AND 6.015 INCHES MAXIMUM IN; Width Across Flats: 10.000 INCHES NOMINAL IN. 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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