PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-451Nut,plain,hexagon

Johnson Controls Navy Systems, Llc · NSN 5310-01-066-0807 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-066-0807 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-066-0807. Primary manufacturer part number: 21-451.
Features
  • Nut,plain,hexagon — FSC 5310
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Nut Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • 1 verified cross-reference
  • Primary manufacturer: Johnson Controls Navy Systems, Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-066-0807, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Johnson Controls Navy Systems, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-066-0807
Primary Part Number21-451
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerJohnson Controls Navy Systems, Llc
StatusACTIVE
Width Across Flats0.250 INCHES NOMINAL IN
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5999-00-035-7875 INTERCHANGEABLE
Contact,electrical
3120-00-354-6409805108 INTERCHANGEABLE
Bearing,sleeve
Dresser, Llc
5895-00-848-908521451 INTERCHANGEABLE
Output Module Assy
Rex Systems Incorporated Dba Rex Systems Inc
4320-01-207-607721451 INTERCHANGEABLE
Motor,hydraulic
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
4010-01-231-5075 INTERCHANGEABLE
Rope,wire
Cross-Reference Index
Part NumberManufacturer
21-451 PRIMARY Johnson Controls Navy Systems, Llc (USA)
Related Parts
5999-00-035-7875INTERCHANGEABLE
CONTACT,ELECTRICAL
3120-00-354-6409INTERCHANGEABLE
BEARING,SLEEVE
805108
5895-00-848-9085INTERCHANGEABLE
OUTPUT MODULE ASSY
21451
4320-01-207-6077INTERCHANGEABLE
MOTOR,HYDRAULIC
21451
4010-01-231-5075INTERCHANGEABLE
ROPE,WIRE

Frequently Asked Questions

What is NSN 5310-01-066-0807?

NSN 5310-01-066-0807 is a Nut,plain,hexagon, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-066-0807?

NSN 5310-01-066-0807 has 1 cross-referenced part number: 21-451 (Johnson Controls Navy Systems, Llc).

What NSN replaces 5310-01-066-0807?

There are 5 known substitutes for 5310-01-066-0807: 5999-00-035-7875, 3120-00-354-6409, 5895-00-848-9085 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-451?

Key specifications for 21-451: Width Across Flats: 0.250 INCHES NOMINAL IN; Nut Style: HEXAGON; Thread Direction: RIGHT-HAND. 3 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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