PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20289Nut,plain,square

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 5310-01-590-9023 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-590-9023 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-590-9023. Primary manufacturer part number: 20289.
Features
  • Nut,plain,square — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,square, cataloged under National Stock Number 5310-01-590-9023, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,plain,square
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersCharles Reed Knight Jr Dba Knight's Armament Company (CAGE 1S002)
Technical Specifications
ParameterValue
NSN5310-01-590-9023
Primary Part Number20289
Item NameNut,plain,square
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-596-8202 INTERCHANGEABLE
Nut,plain,square
6150-00-842-072101016-00-08 INTERCHANGEABLE
Cable Assembly,power,electrical
Electrical Conductors Inc
5950-01-020-0610080-20288-01 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
6625-01-021-5912SM-C-399002 INTERCHANGEABLE
Meter,special Scale
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-01-046-385620289 INTERCHANGEABLE
Rod,nozzle Ring,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4140-01-098-014220289 INTERCHANGEABLE
Impeller,fan,centrifugal
Scott and Fetzer Co the Wayne Home Equipment Div
5962-01-167-7875SN54LS00J INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
4930-01-196-131520288 INTERCHANGEABLE
Swivel Body
Coxwells Inc Dba Coxreels
5365-01-197-125020288 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
5330-01-315-212320289 INTERCHANGEABLE
Seal,plain
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
20289 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
20288 Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
5310-00-596-8202INTERCHANGEABLE
NUT,PLAIN,SQUARE
6150-00-842-0721INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
01016-00-08
5950-01-020-0610INTERCHANGEABLE
TRANSFORMER,POWER
080-20288-01
6625-01-021-5912INTERCHANGEABLE
METER,SPECIAL SCALE
SM-C-399002
4820-01-046-3856INTERCHANGEABLE
ROD,NOZZLE RING,VALVE
20289
4140-01-098-0142INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
20289
5962-01-167-7875INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SN54LS00J
4930-01-196-1315INTERCHANGEABLE
SWIVEL BODY
20288
5365-01-197-1250INTERCHANGEABLE
SHIM
20288
5330-01-315-2123INTERCHANGEABLE
SEAL,PLAIN
20289
6850-01-419-9068INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
5325-01-505-0583INTERCHANGEABLE
STUD,TURNLOCK FASTENER
20288

Frequently Asked Questions

What is NSN 5310-01-590-9023?

NSN 5310-01-590-9023 is a Nut,plain,square, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-590-9023?

NSN 5310-01-590-9023 has 2 cross-referenced part numbers: 20289 (Charles Reed Knight Jr Dba Knight's Armament Company), 20288 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 5310-01-590-9023?

There are 12 known substitutes for 5310-01-590-9023: 5310-00-596-8202, 6150-00-842-0721, 5950-01-020-0610 and 9 more. Verify interchangeability with system specifications before substitution.

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