PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5571Nut,self-Locking,hexagon

Mitsubishi Caterpillar Forklift America, Inc · NSN 5310-00-384-8118 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-384-8118 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-384-8118. Primary manufacturer part number: 5571.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Quantity Per Inch: 18
  • Nominal Thread Size: 0.875 INCHES IN
  • Bearing Surface Type: CHAMFERED
  • Thread Series: UNS
  • Locking Feature: FREE-RUNNING ALL METAL DESIGN
  • Nut Style: HEXAGON
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-384-8118, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mitsubishi Caterpillar Forklift America, Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-384-8118
Primary Part Number5571
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMitsubishi Caterpillar Forklift America, Inc
StatusCANCELLED
Thread Quantity Per Inch18
Nominal Thread Size0.875 INCHES IN
Bearing Surface TypeCHAMFERED
Thread SeriesUNS
Locking FeatureFREE-RUNNING ALL METAL DESIGN
Nut StyleHEXAGON
MaterialSTEEL OVERALL
Width Across Flats1.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nut Height0.281 INCHES NOMINAL IN
Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5805-00-128-0648SCC22538 INTERCHANGEABLE
Ringer,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-00-257-9853B32857 INTERCHANGEABLE
Connector,receptacle,electrical
Stromberg-Carlson Corp a Plessey Telecommunications Co
6625-01-175-2599PD87MMTRBCID77 INTERCHANGEABLE
Counter,electronic,digital Reado
Warner Robins Air Logistics Center
1560-01-281-887355-71 INTERCHANGEABLE
Cover,special
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
3120-01-332-0044 INTERCHANGEABLE
Bearing,washer,thrust
5985-01-359-5084A3018692-1 INTERCHANGEABLE
Attenuator,fixed
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-01-432-5489X18255 INTERCHANGEABLE
Nut,self-Locking,hexagon
Wisconsin Motors, Llc
5365-01-604-3212850165 INTERCHANGEABLE
Bushing,nonmetallic
Brunswick Corp Dba Mercury Marine Div Mercury Marine
Cross-Reference Index
Part NumberManufacturer
005571 Mitsubishi Caterpillar Forklift America, Inc (USA)
5571 PRIMARY Mitsubishi Caterpillar Forklift America, Inc (USA)
X18255 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
850165 PRIMARY Clark Material Handling Company (USA)
850165 Clark Equipment Co (USA)
Related Parts
5805-00-128-0648INTERCHANGEABLE
RINGER,TELEPHONE
SCC22538
5935-00-257-9853INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
B32857
6625-01-175-2599INTERCHANGEABLE
COUNTER,ELECTRONIC,DIGITAL READO
PD87MMTRBCID77
1560-01-281-8873INTERCHANGEABLE
COVER,SPECIAL
55-71
3120-01-332-0044INTERCHANGEABLE
BEARING,WASHER,THRUST
5985-01-359-5084INTERCHANGEABLE
ATTENUATOR,FIXED
A3018692-1
5310-01-432-5489INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
X18255
5365-01-604-3212INTERCHANGEABLE
BUSHING,NONMETALLIC
850165

Frequently Asked Questions

What is NSN 5310-00-384-8118?

NSN 5310-00-384-8118 is a Nut,self-Locking,hexagon, manufactured by Mitsubishi Caterpillar Forklift America, Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-384-8118?

NSN 5310-00-384-8118 has 5 cross-referenced part numbers: 005571 (Mitsubishi Caterpillar Forklift America, Inc), 5571 (Mitsubishi Caterpillar Forklift America, Inc), X18255 (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc), 850165 (Clark Material Handling Company), 850165 (Clark Equipment Co).

What NSN replaces 5310-00-384-8118?

There are 8 known substitutes for 5310-00-384-8118: 5805-00-128-0648, 5935-00-257-9853, 6625-01-175-2599 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5571?

Key specifications for 5571: Thread Quantity Per Inch: 18; Nominal Thread Size: 0.875 INCHES IN; Bearing Surface Type: CHAMFERED; Thread Series: UNS. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-384-8118 still in active supply?

NSN 5310-00-384-8118 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