PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X18220Nut,plain,hexagon

Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc · NSN 5310-00-208-2855 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-2855 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-2855. Primary manufacturer part number: X18220.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Height: 0.422 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 10
  • Bearing Surface Type: CHAMFERED
  • Nominal Thread Size: 0.750 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-208-2855, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-208-2855
Primary Part NumberX18220
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTeledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc
StatusCANCELLED
Nut Height0.422 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch10
Bearing Surface TypeCHAMFERED
Nominal Thread Size0.750 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Thread Class3B
Width Across Flats1.125 INCHES NOMINAL IN
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-115-3864 INTERCHANGEABLE
Reducer,tube
3120-00-354-64061A21-443 INTERCHANGEABLE
Bearing,sleeve
Fwd Seagrave Holdings Lp
3825-00-522-1380 INTERCHANGEABLE
Clamp
6625-00-525-048821443 INTERCHANGEABLE
Case,test Set
L3harris Technologies, Inc. Div Space and Airborne Systems
5970-00-708-87142-144-3 INTERCHANGEABLE
Insulator,plate
Precision Aerospace Corporation Dba Precision Engine Control
6665-00-761-295221443 INTERCHANGEABLE
Cord,probe,retractible
Mirion Technologies (canberra), Inc.
5998-00-848-897821443-1 INTERCHANGEABLE
Circuit Card Assembly
Rex Systems Incorporated Dba Rex Systems Inc
5945-00-945-5441 INTERCHANGEABLE
Relay,electromagnetic
4730-00-995-1559 INTERCHANGEABLE
Adapter,straight,pipe to Tube
3120-01-037-790431092 INTERCHANGEABLE
Bushing,packing
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
Cross-Reference Index
Part NumberManufacturer
X18220 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
218443 General Motors Llc Dba General Motors Llc (USA)
218443 General Motors Corp (USA)
50539 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
E-3.101 General Motors Corp (USA)
E-3.121 General Motors Corp (USA)
21443 General Motors Corp (USA)
Related Parts
4730-00-115-3864INTERCHANGEABLE
REDUCER,TUBE
3120-00-354-6406INTERCHANGEABLE
BEARING,SLEEVE
1A21-443
3825-00-522-1380INTERCHANGEABLE
CLAMP
6625-00-525-0488INTERCHANGEABLE
CASE,TEST SET
21443
5970-00-708-8714INTERCHANGEABLE
INSULATOR,PLATE
2-144-3
6665-00-761-2952INTERCHANGEABLE
CORD,PROBE,RETRACTIBLE
21443
5998-00-848-8978INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21443-1
5945-00-945-5441INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4730-00-995-1559INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
3120-01-037-7904INTERCHANGEABLE
BUSHING,PACKING
31092
4820-01-046-7408INTERCHANGEABLE
SEAT,VALVE
5330-01-107-9441INTERCHANGEABLE
PACKING ASSEMBLY
50539

Frequently Asked Questions

What is NSN 5310-00-208-2855?

NSN 5310-00-208-2855 is a Nut,plain,hexagon, manufactured by Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-208-2855?

NSN 5310-00-208-2855 has 7 cross-referenced part numbers: X18220 (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc), 218443 (General Motors Llc Dba General Motors Llc), 218443 (General Motors Corp), 50539 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), E-3.101 (General Motors Corp) and 2 more.

What NSN replaces 5310-00-208-2855?

There are 12 known substitutes for 5310-00-208-2855: 4730-00-115-3864, 3120-00-354-6406, 3825-00-522-1380 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of X18220?

Key specifications for X18220: Nut Height: 0.422 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Quantity Per Inch: 10; Bearing Surface Type: CHAMFERED. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-208-2855 still in active supply?

NSN 5310-00-208-2855 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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