PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21NE-066Nut,self-Locking,hexagon

Esna, Llc · NSN 5310-00-014-5855 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-014-5855 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-014-5855. Primary manufacturer part number: 21NE-066.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • 20 verified cross-references
  • Primary manufacturer: Esna, Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-014-5855, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. This item has 20 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameNut,self-Locking,hexagon
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersEsna, Llc (CAGE 019L2); Reid Supply Company (CAGE 01599); Harvard Industries Inc (CAGE 72962); Zf Industrieantriebe Witten Gmbh (CAGE D9182); Oshkosh Corp (CAGE 45152)
Technical Specifications
ParameterValue
NSN5310-00-014-5855
Primary Part Number21NE-066
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEsna, Llc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-004-0224986069-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5310-00-007-6082219391 INTERCHANGEABLE
Washer,flat
Woodward, Inc.
4820-00-036-164213152 INTERCHANGEABLE
Stem,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
3110-00-100-984134274 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5331-00-113-3804 INTERCHANGEABLE
O-Ring
2590-00-123-71901315-2 INTERCHANGEABLE
Cap,filler Opening
Snyder Tank Corp
5935-00-204-831753-265-2 INTERCHANGEABLE
Jack,tip
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5305-00-206-605134-274 INTERCHANGEABLE
Thumbscrew
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4820-00-223-5348219391 INTERCHANGEABLE
Valve Assembly
Dana Off Highway Products, Llc
3120-00-354-3824 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
21NE-066 PRIMARY Esna, Llc (USA)
SN-6 Reid Supply Company (USA)
21NE066 Harvard Industries Inc (USA)
21NE0066 Zf Industrieantriebe Witten Gmbh (DEU)
2AT840 Oshkosh Corp (USA)
21NE066 Amerace Ltd (CAN)
17D-3 Vme Americas Inc Sub of Vme Group N V (USA)
219-391 Crane Carrier Company, Llc (USA)
2533408PC16 PRIMARY Naval Sea Systems Command (USA)
219-0391 Crane Carrier Company, Llc (USA)
82-0200-0038 Pierce Manufacturing Inc (USA)
A219-391 Crane Carrier Company, Llc (USA)
131-52 Cnh Industrial America Llc Dba Cnh America (USA)
HN-179 Spaenaur Inc (CAN)
2533408PC16 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
CF-21NE-66 Lrg Fastener Corporation Dba Continental-Aero (USA)
34274 Barnes Group Inc. Dba Barnes Distribution (USA)
108708A Oshkosh Defense Llc (USA)
108708A Oshkosh Corp (USA)
85304-3 Lockwood Corp (USA)
Related Parts
5950-00-004-0224INTERCHANGEABLE
REACTOR
986069-1
5310-00-007-6082INTERCHANGEABLE
WASHER,FLAT
219391
4820-00-036-1642INTERCHANGEABLE
STEM,VALVE
13152
3110-00-100-9841INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
34274
5331-00-113-3804INTERCHANGEABLE
O-RING
2590-00-123-7190INTERCHANGEABLE
CAP,FILLER OPENING
1315-2
5935-00-204-8317INTERCHANGEABLE
JACK,TIP
53-265-2
5305-00-206-6051INTERCHANGEABLE
THUMBSCREW
34-274
4820-00-223-5348INTERCHANGEABLE
VALVE ASSEMBLY
219391
3120-00-354-3824INTERCHANGEABLE
BEARING,SLEEVE
6930-00-443-9003INTERCHANGEABLE
SLEEVE ASSEMBLY9
13152
6685-00-526-8414INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG

Frequently Asked Questions

What is NSN 5310-00-014-5855?

NSN 5310-00-014-5855 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-014-5855?

NSN 5310-00-014-5855 has 20 cross-referenced part numbers: 21NE-066 (Esna, Llc), SN-6 (Reid Supply Company), 21NE066 (Harvard Industries Inc), 21NE0066 (Zf Industrieantriebe Witten Gmbh), 2AT840 (Oshkosh Corp) and 15 more.

What NSN replaces 5310-00-014-5855?

There are 12 known substitutes for 5310-00-014-5855: 5950-00-004-0224, 5310-00-007-6082, 4820-00-036-1642 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5310-00-014-5855 still in active supply?

NSN 5310-00-014-5855 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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