PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21083B08Nut,self-Locking,hexagon

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-941-9452 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-941-9452 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-941-9452. Primary manufacturer part number: MS21083B08.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT
  • Thread Quantity Per Inch: 32
  • Countersink Angle: 88.0 DEGREES MINIMUM NUT
  • Lubrication: SOLUBLE LUBRICANT
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
  • Temp Rating: 250.0 FAHRENHEIT MAXIMUM DEGF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-941-9452, 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 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-941-9452
Primary Part NumberMS21083B08
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
StatusACTIVE
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT
Thread Quantity Per Inch32
Countersink Angle88.0 DEGREES MINIMUM NUT
LubricationSOLUBLE LUBRICANT
Thread DirectionRIGHT-HAND
Width Across Flats0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
Temp Rating250.0 FAHRENHEIT MAXIMUM DEGF
Nominal Thread Size0.164 INCHES IN
Bearing Surface Finish125.0 MICROINCHES
MaterialCOPPER ALLOY NUT
Bearing Surface TypeCHAMFERED OR WASHER FACED
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
Nut Height0.188 INCHES MAXIMUM IN
Thread SeriesUNJC
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Surface TreatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
Thread Class3B
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-01-102-659180035-1 INTERCHANGEABLE
Handle,needle Valve
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
6150-01-492-1566 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5355-01-556-32692640-599 PIECE NO 10 INTERCHANGEABLE
Knob
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
Y92NTM-82 Harvard Industries Inc (USA)
MS21083B08 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NASM25027 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS21083B08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
8003-51 North and Judd Inc Wilcox-Crittenden Div (USA)
Y92NTM-82 Esna, Llc (USA)
Y92NTM832 Greer Stop Nut, Inc. (USA)
PS23385-1 Emerson Electric Co Alco Controls Div (USA)
Related Parts
4820-01-102-6591INTERCHANGEABLE
HANDLE,NEEDLE VALVE
80035-1
6150-01-492-1566INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5355-01-556-3269INTERCHANGEABLE
KNOB
2640-599 PIECE NO 10

Frequently Asked Questions

What is NSN 5310-00-941-9452?

NSN 5310-00-941-9452 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: active.

What are the part numbers for NSN 5310-00-941-9452?

NSN 5310-00-941-9452 has 8 cross-referenced part numbers: Y92NTM-82 (Harvard Industries Inc), MS21083B08 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NASM25027 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS21083B08 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 8003-51 (North and Judd Inc Wilcox-Crittenden Div) and 3 more.

What NSN replaces 5310-00-941-9452?

There are 3 known substitutes for 5310-00-941-9452: 4820-01-102-6591, 6150-01-492-1566, 5355-01-556-3269. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21083B08?

Key specifications for MS21083B08: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT; Thread Quantity Per Inch: 32; Countersink Angle: 88.0 DEGREES MINIMUM NUT; Lubrication: SOLUBLE LUBRICANT. 18 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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