PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125550Nut,plain,square

Chrysler Realty Company Llc Dba Daimler Chrysler · NSN 5310-00-012-5550 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-5550 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-5550. Primary manufacturer part number: 125550.
Features
  • Nut,plain,square — FSC 5310
  • Nut Height: 0.525 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: WASHER FACED
  • Thread Quantity Per Inch: 11
  • Nominal Thread Size: 0.625 INCHES IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,square, cataloged under National Stock Number 5310-00-012-5550, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Chrysler Realty Company Llc Dba Daimler Chrysler. Government technical data includes 11 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-012-5550
Primary Part Number125550
Item NameNut,plain,square
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerChrysler Realty Company Llc Dba Daimler Chrysler
StatusCANCELLED
Nut Height0.525 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeWASHER FACED
Thread Quantity Per Inch11
Nominal Thread Size0.625 INCHES IN
Surface TreatmentCADMIUM OR ZINC OVERALL
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Nut StyleSQUARE
Width Across Flats0.969 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Thread Class2B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5310-00-010-5605 INTERCHANGEABLE
Nut,plain,square
5310-00-010-560627040BTC INTERCHANGEABLE
Nut,plain,square
Badger Truck and Automotive Group, Inc.
5310-00-010-5609 INTERCHANGEABLE
Nut,plain,square
5310-00-010-5611105611 INTERCHANGEABLE
Nut,plain,square
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-012-5557 INTERCHANGEABLE
Nut,plain,square
5310-00-014-0632140632 INTERCHANGEABLE
Nut,plain,square
General Motors Llc Dba General Motors Llc
5305-00-206-1053125550 INTERCHANGEABLE
Screw,cap,hexagon Head
Eaton Aerospace, Llc Dba Jackson South
6680-01-400-1304125550 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
6625-01-420-9122 INTERCHANGEABLE
Control-Power Supply
5315-01-716-3669VX0300 INTERCHANGEABLE
Pin,quick Release
Rock Exotica
Cross-Reference Index
Part NumberManufacturer
125550 Army Weapons Command Attn Amswe-Ree-S (USA)
125550 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
FFB571TYPEB1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-010-5605INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-010-5606INTERCHANGEABLE
NUT,PLAIN,SQUARE
27040BTC
5310-00-010-5609INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-010-5611INTERCHANGEABLE
NUT,PLAIN,SQUARE
105611
5310-00-012-5557INTERCHANGEABLE
NUT,PLAIN,SQUARE
5310-00-014-0632INTERCHANGEABLE
NUT,PLAIN,SQUARE
140632
5305-00-206-1053INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
125550
6680-01-400-1304INTERCHANGEABLE
SWITCH,LIQUID LEVEL
125550
6625-01-420-9122INTERCHANGEABLE
CONTROL-POWER SUPPLY
5315-01-716-3669INTERCHANGEABLE
PIN,QUICK RELEASE
VX0300

Frequently Asked Questions

What is NSN 5310-00-012-5550?

NSN 5310-00-012-5550 is a Nut,plain,square, manufactured by Chrysler Realty Company Llc Dba Daimler Chrysler, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-012-5550?

NSN 5310-00-012-5550 has 3 cross-referenced part numbers: 125550 (Army Weapons Command Attn Amswe-Ree-S), 125550 (Chrysler Realty Company Llc Dba Daimler Chrysler), FFB571TYPEB1 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-012-5550?

There are 10 known substitutes for 5310-00-012-5550: 5310-00-010-5605, 5310-00-010-5606, 5310-00-010-5609 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125550?

Key specifications for 125550: Nut Height: 0.525 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Bearing Surface Type: WASHER FACED; Thread Quantity Per Inch: 11. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-012-5550 still in active supply?

NSN 5310-00-012-5550 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.
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