PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14966Nut,self-Locking,extended Washer

Meggitt (new Hampshire), Inc · NSN 5310-01-019-2156 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-019-2156 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-019-2156. Primary manufacturer part number: 14966.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Nut Style: HEXAGON
  • Thread Quantity Per Inch: 20
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.250 INCHES IN
  • Washer Thickness: 0.075 INCHES NOMINAL IN
  • Thread Class: 3B
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-019-2156, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meggitt (new Hampshire), Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-019-2156
Primary Part Number14966
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMeggitt (new Hampshire), Inc
StatusACTIVE
Nut StyleHEXAGON
Thread Quantity Per Inch20
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.250 INCHES IN
Washer Thickness0.075 INCHES NOMINAL IN
Thread Class3B
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
MaterialSTEEL OVERALL
Width Across Flats0.432 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Washer Outside Diameter0.573 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2910-00-066-249914966 INTERCHANGEABLE
Cam Assembly,shut Off
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5320-00-262-7672NAS1496-06 INTERCHANGEABLE
Pin-Rivet
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
2805-00-358-31381142998 INTERCHANGEABLE
Plunger
Chrysler Corp Service and Parts Opns
5310-01-105-4212 INTERCHANGEABLE
Nut
5962-01-342-4106 INTERCHANGEABLE
Microcircuit,digital
2540-01-559-630514966 INTERCHANGEABLE
Coupler,drawbar,ring
Silver Eagle Manufacturing Co
4210-01-611-8993B441 INTERCHANGEABLE
Extinguisher,fire
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
953363 Raytheon Company Div Corp (USA)
953363 Raytheon Company (USA)
TLNF1420S P.g.& E. Corp. (USA)
14966 PRIMARY Meggitt (new Hampshire), Inc (USA)
953363 Raytheon Company Dba Raytheon Co (USA)
131-1351 Cnh Industrial America Llc Dba Cnh America (USA)
22SFAU-1420 Star Headlight & Lantern Co Inc (USA)
Related Parts
2910-00-066-2499INTERCHANGEABLE
CAM ASSEMBLY,SHUT OFF
14966
5320-00-262-7672INTERCHANGEABLE
PIN-RIVET
NAS1496-06
2805-00-358-3138INTERCHANGEABLE
PLUNGER
1142998
5310-01-105-4212INTERCHANGEABLE
NUT
5962-01-342-4106INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2540-01-559-6305INTERCHANGEABLE
COUPLER,DRAWBAR,RING
14966
4210-01-611-8993INTERCHANGEABLE
EXTINGUISHER,FIRE
B441

Frequently Asked Questions

What is NSN 5310-01-019-2156?

NSN 5310-01-019-2156 is a Nut,self-Locking,extended Washer, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-019-2156?

NSN 5310-01-019-2156 has 7 cross-referenced part numbers: 953363 (Raytheon Company Div Corp), 953363 (Raytheon Company), TLNF1420S (P.g.& E. Corp.), 14966 (Meggitt (new Hampshire), Inc), 953363 (Raytheon Company Dba Raytheon Co) and 2 more.

What NSN replaces 5310-01-019-2156?

There are 7 known substitutes for 5310-01-019-2156: 2910-00-066-2499, 5320-00-262-7672, 2805-00-358-3138 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14966?

Key specifications for 14966: Nut Style: HEXAGON; Thread Quantity Per Inch: 20; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Size: 0.250 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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