PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21581Nut,plain,hexagon

Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis · NSN 5310-00-584-7594 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-584-7594 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-584-7594. Primary manufacturer part number: 21581.
Features
  • Nut,plain,hexagon — FSC 5310
  • Width Across Flats: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.164 INCHES IN
  • Thread Quantity Per Inch: 32
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: CHAMFERED
  • Nut Height: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
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 5310-00-584-7594, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-584-7594
Primary Part Number21581
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
StatusCANCELLED
Width Across Flats0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nominal Thread Size0.164 INCHES IN
Thread Quantity Per Inch32
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeCHAMFERED
Nut Height0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Thread Class2B
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
2990-00-451-483949135 INTERCHANGEABLE
Arrester,spark Exhaust
Cummins Filtration Inc.
6625-00-532-2992 INTERCHANGEABLE
Gear Assy,generator
5310-00-637-053421581-01 INTERCHANGEABLE
Nut,plain,round
Ge Aviation Systems Llc
4130-01-095-418721581 INTERCHANGEABLE
Retainer Assembly,air Conditione
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3040-01-182-5417 INTERCHANGEABLE
Hub Assembly
5325-01-518-0836 INTERCHANGEABLE
Fastener,snapslide
5340-01-555-305521581 INTERCHANGEABLE
Cover,protective,dust and Moistu
L3harris Technologies, Inc Div Space & Airborne Systems
3895-01-697-2717P-LP-325 INTERCHANGEABLE
Reel System,hose
Coxwells Inc Dba Coxreels
Cross-Reference Index
Part NumberManufacturer
21581 Honeywell Inc Residential Div (USA)
21581 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis (USA)
Related Parts
2990-00-451-4839INTERCHANGEABLE
ARRESTER,SPARK EXHAUST
49135
6625-00-532-2992INTERCHANGEABLE
GEAR ASSY,GENERATOR
5310-00-637-0534INTERCHANGEABLE
NUT,PLAIN,ROUND
21581-01
4130-01-095-4187INTERCHANGEABLE
RETAINER ASSEMBLY,AIR CONDITIONE
21581
3040-01-182-5417INTERCHANGEABLE
HUB ASSEMBLY
5325-01-518-0836INTERCHANGEABLE
FASTENER,SNAPSLIDE
5340-01-555-3055INTERCHANGEABLE
COVER,PROTECTIVE,DUST AND MOISTU
21581
3895-01-697-2717INTERCHANGEABLE
REEL SYSTEM,HOSE
P-LP-325

Frequently Asked Questions

What is NSN 5310-00-584-7594?

NSN 5310-00-584-7594 is a Nut,plain,hexagon, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-584-7594?

NSN 5310-00-584-7594 has 2 cross-referenced part numbers: 21581 (Honeywell Inc Residential Div), 21581 (Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis).

What NSN replaces 5310-00-584-7594?

There are 8 known substitutes for 5310-00-584-7594: 2990-00-451-4839, 6625-00-532-2992, 5310-00-637-0534 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21581?

Key specifications for 21581: Width Across Flats: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.164 INCHES IN; Thread Quantity Per Inch: 32. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-584-7594 still in active supply?

NSN 5310-00-584-7594 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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