PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21044C8Nut,self-Locking,hexagon

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-982-4973 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-982-4973 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-982-4973. Primary manufacturer part number: MS21044C8.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Countersink Angle: 88.0 DEGREES NOMINAL NUT
  • Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 NUT
  • Thread Class: 3B
  • Material Document and Classification: AMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5640 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5647 ASSN STD 3RD MATERIAL RESPONSE NUT
  • Surface Treatment: PASSIVATE OVERALL EXCEPT INSERT
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Width Across Flats: 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 304 Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-982-4973, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-982-4973
Primary Part NumberMS21044C8
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Countersink Angle88.0 DEGREES NOMINAL NUT
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 NUT
Thread Class3B
Material Document and ClassificationAMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5640 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5647 ASSN STD 3RD MATERIAL RESPONSE NUT
Surface TreatmentPASSIVATE OVERALL EXCEPT INSERT
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Width Across Flats0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
Thread Quantity Per Inch20
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Nominal Thread Size0.500 INCHES IN
Bearing Surface Finish125.0 MICROINCHES
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
LubricationSOLUBLE LUBRICANT
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height0.575 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5905-00-120-9152 INTERCHANGEABLE
Resistor,fixed,composition
5998-01-069-3402410072 INTERCHANGEABLE
Circuit Card Assembly
Telemechanics Inc
5998-01-519-3334410072 INTERCHANGEABLE
Circuit Card Assembly
Datron World Communications, Inc.
5310-01-577-1145MS17830-8F INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
00410072000 General Dynamics Mission Systems, Inc. (USA)
MS17830-8F Zf Industrieantriebe Witten Gmbh (DEU)
MS21044C8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS21044-C8 Zf Industrieantriebe Witten Gmbh (DEU)
79NE080 Zf Industrieantriebe Witten Gmbh (DEU)
79NE080 Harvard Industries Inc (USA)
122-2422328 PC Naval Sea Systems Command (USA)
002-003645-009 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
MS21044C8 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
410072 General Dynamics Mission Systems, Inc. (USA)
MS21044F-8C Zf Industrieantriebe Witten Gmbh (DEU)
122-2404528 PIE Naval Ship Systems Command (USA)
M24129/3-8F Zf Industrieantriebe Witten Gmbh (DEU)
NASM21044C8 De Technologies Inc (USA)
523C841PC4 Northrop Grumman Systems Corporation Div Marine Systems (USA)
Related Parts
5905-00-120-9152INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5998-01-069-3402INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
410072
5998-01-519-3334INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
410072
5310-01-577-1145INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS17830-8F

Frequently Asked Questions

What is NSN 5310-00-982-4973?

NSN 5310-00-982-4973 is a Nut,self-Locking,hexagon, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-982-4973?

NSN 5310-00-982-4973 has 15 cross-referenced part numbers: 00410072000 (General Dynamics Mission Systems, Inc.), MS17830-8F (Zf Industrieantriebe Witten Gmbh), MS21044C8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS21044-C8 (Zf Industrieantriebe Witten Gmbh), 79NE080 (Zf Industrieantriebe Witten Gmbh) and 10 more.

What NSN replaces 5310-00-982-4973?

There are 4 known substitutes for 5310-00-982-4973: 5905-00-120-9152, 5998-01-069-3402, 5998-01-519-3334 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21044C8?

Key specifications for MS21044C8: Countersink Angle: 88.0 DEGREES NOMINAL NUT; Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 NUT; Thread Class: 3B; Material Document and Classification: AMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5640 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5647 ASSN STD 3RD MATERIAL RESPONSE NUT. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-982-4973 still in active supply?

NSN 5310-00-982-4973 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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