PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D2506Nut,plain,slotted,hexagon

Koehring Co Lorain Div · NSN 5310-00-266-0490 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-266-0490 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-266-0490. Primary manufacturer part number: D2506.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Thread Class: 2B
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 1.500 INCHES IN
  • Thread Quantity Per Inch: 6
  • Bearing Surface Type: WASHER FACED
  • Material: STEEL COMP 1020 OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1020 Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-266-0490, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Koehring Co Lorain Div. Government technical data includes 11 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-266-0490
Primary Part NumberD2506
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKoehring Co Lorain Div
StatusCANCELLED
Thread Class2B
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size1.500 INCHES IN
Thread Quantity Per Inch6
Bearing Surface TypeWASHER FACED
MaterialSTEEL COMP 1020 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nut Height1.245 INCHES MINIMUM AND 2.175 INCHES MAXIMUM IN
Width Across Flats2.175 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
Nut StyleSLOTTED, HEXAGON
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5930-00-655-1514 INTERCHANGEABLE
Switch,toggle
4820-01-440-1341D-2506 INTERCHANGEABLE
Diaphragm,valve,flat
Aalberts Integrated Piping Systems Americas, Inc.
4440-01-670-2309D25-06 INTERCHANGEABLE
Drier,air-Gas,desiccant
Arrow Pneumatics Inc
Cross-Reference Index
Part NumberManufacturer
D2506 Koehring Co Lorain Div (USA)
D2506 Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co (USA)
Related Parts
5930-00-655-1514INTERCHANGEABLE
SWITCH,TOGGLE
4820-01-440-1341INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
D-2506
4440-01-670-2309INTERCHANGEABLE
DRIER,AIR-GAS,DESICCANT
D25-06

Frequently Asked Questions

What is NSN 5310-00-266-0490?

NSN 5310-00-266-0490 is a Nut,plain,slotted,hexagon, manufactured by Koehring Co Lorain Div, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-266-0490?

NSN 5310-00-266-0490 has 2 cross-referenced part numbers: D2506 (Koehring Co Lorain Div), D2506 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co).

What NSN replaces 5310-00-266-0490?

There are 3 known substitutes for 5310-00-266-0490: 5930-00-655-1514, 4820-01-440-1341, 4440-01-670-2309. Verify interchangeability with system specifications before substitution.

What are the specifications of D2506?

Key specifications for D2506: Thread Class: 2B; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Size: 1.500 INCHES IN; Thread Quantity Per Inch: 6. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-266-0490 still in active supply?

NSN 5310-00-266-0490 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com