PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21083N20Nut,self-Locking,hexagon

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-016-7142 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-016-7142 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-016-7142. Primary manufacturer part number: MS21083N20.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT
  • Thread Class: 3B
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Material: STEEL NUT
  • Bearing Surface Finish: 125.0 MICROINCHES
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-016-7142, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-016-7142
Primary Part NumberMS21083N20
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
Nut StyleHEXAGON
Bearing Surface TypeCHAMFERED OR WASHER FACED
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT
Thread Class3B
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
MaterialSTEEL NUT
Bearing Surface Finish125.0 MICROINCHES
Thread DirectionRIGHT-HAND
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
Hardness Rating35.0 ROCKWELL C MAXIMUM
Surface TreatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
Thread Quantity Per Inch12
Countersink Angle88.0 DEGREES MINIMUM NUT
Width Across Flats1.801 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
LubricationSOLUBLE LUBRICANT
Nominal Thread Size1.250 INCHES IN
Temp Rating250.0 FAHRENHEIT MAXIMUM DEGF
Nut Height0.766 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
3455-00-231-3510 INTERCHANGEABLE
Cutter,milling,side
5935-00-552-46561741-1 INTERCHANGEABLE
Connector,receptacle,electrical
Microwave Devices Inc
9540-00-805-8020 INTERCHANGEABLE
Beam,structural
5330-01-012-734690527-5 INTERCHANGEABLE
Gasket
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
1650-01-034-727690-5275 INTERCHANGEABLE
Cylinder
The Boeing Company Div Defense
5962-01-099-250004040505-001 INTERCHANGEABLE
Microcircuit,linear
Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services
5310-01-128-4969905275 INTERCHANGEABLE
Nut
Rexnord Industries Llc
4410-01-184-0184905275A INTERCHANGEABLE
Heater Assembly,water
Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc
2520-01-216-776017411 INTERCHANGEABLE
Shifter Fork,vehicular
Dana Commercial Vehicle Products, Llc
5945-01-472-1956 INTERCHANGEABLE
Selenoid Right
Cross-Reference Index
Part NumberManufacturer
17411 Hyster-Yale Group, Inc. (USA)
F52NTE-202 Harvard Industries Inc (USA)
905275 Zf Industrieantriebe Witten Gmbh (DEU)
MS21083N20 Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
MS20364-2012 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS21083N20 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS21083N20 Marshall of Cambridge Aerospace Limited (GBR)
122-4734979 P/N 62 Naval Sea Systems Command (USA)
MS21083N20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
68454-2012 Sps Technologies, Llc Dba PB Fasteners (USA)
NASM25027 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
904885 Scandinavian Manufacturing Scama Ab (SWE)
Related Parts
3455-00-231-3510INTERCHANGEABLE
CUTTER,MILLING,SIDE
5935-00-552-4656INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1741-1
9540-00-805-8020INTERCHANGEABLE
BEAM,STRUCTURAL
5330-01-012-7346INTERCHANGEABLE
GASKET
90527-5
1650-01-034-7276INTERCHANGEABLE
CYLINDER
90-5275
5962-01-099-2500INTERCHANGEABLE
MICROCIRCUIT,LINEAR
04040505-001
5310-01-128-4969INTERCHANGEABLE
NUT
905275
4410-01-184-0184INTERCHANGEABLE
HEATER ASSEMBLY,WATER
905275A
2520-01-216-7760INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
17411
5945-01-472-1956INTERCHANGEABLE
SELENOID RIGHT
5925-01-686-8492INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5310-00-016-7142?

NSN 5310-00-016-7142 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 5310-00-016-7142?

NSN 5310-00-016-7142 has 12 cross-referenced part numbers: 17411 (Hyster-Yale Group, Inc.), F52NTE-202 (Harvard Industries Inc), 905275 (Zf Industrieantriebe Witten Gmbh), MS21083N20 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba), MS20364-2012 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 7 more.

What NSN replaces 5310-00-016-7142?

There are 11 known substitutes for 5310-00-016-7142: 3455-00-231-3510, 5935-00-552-4656, 9540-00-805-8020 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21083N20?

Key specifications for MS21083N20: Nut Style: HEXAGON; Bearing Surface Type: CHAMFERED OR WASHER FACED; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL EXCEPT INSERT; Thread Class: 3B. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-016-7142 still in active supply?

NSN 5310-00-016-7142 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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