PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21044C3Nut,self-Locking,hexagon

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5310-00-208-9255 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-9255 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-9255. Primary manufacturer part number: MS21044C3.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Countersink Angle: 88.0 DEGREES NOMINAL NUT
  • Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF
  • Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Nominal Thread Size: 0.190 INCHES IN
  • Width Across Flats: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Bearing Surface Finish: 125.0 MICROINCHES
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 5310-00-208-9255, 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 48 commercial cross-references from 30 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-208-9255
Primary Part NumberMS21044C3
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
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Thread SeriesUNIFIED NATIONAL JOINT FINE (UNJF)
Nominal Thread Size0.190 INCHES IN
Width Across Flats0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Bearing Surface Finish125.0 MICROINCHES
Thread DirectionRIGHT-HAND
Surface TreatmentPASSIVATE OVERALL EXCEPT INSERT
Nut StyleHEXAGON
Bearing Surface TypeCHAMFERED OR WASHER FACED
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
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 NUT
Thread Class3B
Nut Height0.208 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
LubricationSOLUBLE LUBRICANT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-156-1798 INTERCHANGEABLE
Bearing,ball,thrust
5920-00-199-94781235C70 INTERCHANGEABLE
Fuse,indicator Alarm
Littelfuse, Inc.
5310-00-207-9071 INTERCHANGEABLE
Nut,self-Locking,hexagon
5962-00-238-353170950100-033 INTERCHANGEABLE
Microcircuit,digital
Getronics Government Solutions Llc
5340-00-761-8991 INTERCHANGEABLE
Cap,protective,mois
5310-00-877-5797MS21044N3 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
7930-01-011-0701 INTERCHANGEABLE
Detergent,utility
5310-01-352-3340MS21044-3 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5365-01-485-2233218179 INTERCHANGEABLE
Spacer,ring
Cadillac Gage Textron Inc.
5310-01-581-932479NM02 INTERCHANGEABLE
Nut,plain,hexagon
Hi-Tech Fasteners, Inc. Dba Hi Tech Fasteners Inc
Cross-Reference Index
Part NumberManufacturer
203-1011P63 Raytheon Company (USA)
441-6726484-K12 -23 Zf Industrieantriebe Witten Gmbh (DEU)
79NM02 Harvard Industries Inc (USA)
104A10002-02 Satair A/s (DNK)
400-2560-109 Danka Office Imaging Company (USA)
4158067-6 Raytheon Company Div Rmd Strategic (USA)
104A10002-02 Parker Hannifin Corp Dba Pneutronics (USA)
MS21044C3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
21685-10141 Leonardo Mw Ltd (GBR)
MS21044C3 Goriziane Group Spa (ITA)
MS21044-3 Zf Industrieantriebe Witten Gmbh (DEU)
2100-2236-001 Zf Industrieantriebe Witten Gmbh (DEU)
2074288-2207 Raytheon Company Dba Raytheon Co (USA)
218179 Woodward, Inc. Div Fuel Systems and Controls (USA)
H34-0004-009 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
002-003645-004 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
2100-2236-001 Larson Laboratories Inc Dba Larson Pharmaceuticals (USA)
MS21044 C3 Zf Industrieantriebe Witten Gmbh (DEU)
NASM21044C3 De Technologies Inc (USA)
5310PL0750842 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
3110-00-156-1798INTERCHANGEABLE
BEARING,BALL,THRUST
5920-00-199-9478INTERCHANGEABLE
FUSE,INDICATOR ALARM
1235C70
5310-00-207-9071INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5962-00-238-3531INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
70950100-033
5340-00-761-8991INTERCHANGEABLE
CAP,PROTECTIVE,MOIS
5310-00-877-5797INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044N3
7930-01-011-0701INTERCHANGEABLE
DETERGENT,UTILITY
5310-01-352-3340INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044-3
5365-01-485-2233INTERCHANGEABLE
SPACER,RING
218179
5310-01-581-9324INTERCHANGEABLE
NUT,PLAIN,HEXAGON
79NM02
7025-01-667-2694INTERCHANGEABLE
DISK DRIVE UNIT
5310-01-671-5484INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-208-9255?

NSN 5310-00-208-9255 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 5310-00-208-9255?

NSN 5310-00-208-9255 has 48 cross-referenced part numbers: 203-1011P63 (Raytheon Company), 441-6726484-K12 -23 (Zf Industrieantriebe Witten Gmbh), 79NM02 (Harvard Industries Inc), 104A10002-02 (Satair A/s), 400-2560-109 (Danka Office Imaging Company) and 43 more.

What NSN replaces 5310-00-208-9255?

There are 12 known substitutes for 5310-00-208-9255: 3110-00-156-1798, 5920-00-199-9478, 5310-00-207-9071 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21044C3?

Key specifications for MS21044C3: Countersink Angle: 88.0 DEGREES NOMINAL NUT; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nominal Thread Size: 0.190 INCHES IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-208-9255 still in active supply?

NSN 5310-00-208-9255 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.
PartsTable Design LLC · partstable.com