PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51021-10Setscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-655-9246 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-655-9246 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-655-9246. Primary manufacturer part number: MS51021-10.
Features
  • Setscrew — FSC 5305
  • Thread Quantity Per Inch: 40
  • Point Style: CUP
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 303 OR STEEL COMP 302 OR STEEL COMP 304 OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.112 INCHES IN
  • Thread Class: 3A A
Applications
  • Applications requiring Steel Comp 303 or Steel Comp 302 or Steel Comp 304 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-655-9246, is classified within Federal Supply Class 5305 (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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 22 commercial cross-references from 18 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-655-9246
Primary Part NumberMS51021-10
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Thread Quantity Per Inch40
Point StyleCUP
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 303 OR STEEL COMP 302 OR STEEL COMP 304 OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.112 INCHES IN
Thread Class3A A
Width Across Flats0.050 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Head StyleHEADLESS (SETSCREW)
Thread Length0.188 INCHES MINIMUM IN
Fastener Length0.188 INCHES NOMINAL IN
Internal Drive StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
6665-00-675-940121317 INTERCHANGEABLE
Cap
Mirion Technologies (canberra), Inc.
5305-00-727-4791MS51029-10 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
6695-01-100-467421317 INTERCHANGEABLE
Bezel,instrument Mounting
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
3950-01-239-3937SG813-AC-MMO-010 FIG 7-2 INTERCHANGEABLE
Winch,drum,power Operated
Naval Sea Systems Command
4320-01-310-644721317 INTERCHANGEABLE
Plate Assembly,balance
Eaton Corporation Div Eaton Fluid Power
5935-01-426-380121317 INTERCHANGEABLE
Adapter,electrical Plug,quick Di
Control Cable Inc
Cross-Reference Index
Part NumberManufacturer
MS51021-10 Raytheon Company Dba Raytheon (USA)
SCB627714-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
003-07941-010 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
HP922R06-440 Bendix Corp the Bendix International Div (USA)
B70344 Mbda Uk Ltd (GBR)
MS51021-10 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
457-5531 Nimikkeistokeskus Ncb Finland (FIN)
5305006559246 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
SCC23081-1 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
0455-130 Honeywell International Inc. Dba Honeywell International (USA)
MS51021-10 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5310PL1335096 Jednolity Indeks Materialowy - Uniform Material Index (POL)
FFS103ATYPE3STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51029-10 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
40527000716 Tadiran Ltd (ISR)
MS51021-10 American Carbonic Engineering Co (USA)
4912535-01 Zf Industrieantriebe Witten Gmbh (DEU)
411121-10 Raytheon Company Dba Raytheon (USA)
2-1317 Barlow Electrical Mfg Co Inc (USA)
328-0139-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
6665-00-675-9401INTERCHANGEABLE
CAP
21317
5305-00-727-4791INTERCHANGEABLE
SETSCREW
MS51029-10
6695-01-100-4674INTERCHANGEABLE
BEZEL,INSTRUMENT MOUNTING
21317
3950-01-239-3937INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
SG813-AC-MMO-010 FIG 7-2
4320-01-310-6447INTERCHANGEABLE
PLATE ASSEMBLY,BALANCE
21317
5935-01-426-3801INTERCHANGEABLE
ADAPTER,ELECTRICAL PLUG,QUICK DI
21317

Frequently Asked Questions

What is NSN 5305-00-655-9246?

NSN 5305-00-655-9246 is a Setscrew, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-655-9246?

NSN 5305-00-655-9246 has 22 cross-referenced part numbers: MS51021-10 (Raytheon Company Dba Raytheon), SCB627714-1 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 003-07941-010 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), HP922R06-440 (Bendix Corp the Bendix International Div), B70344 (Mbda Uk Ltd) and 17 more.

What NSN replaces 5305-00-655-9246?

There are 6 known substitutes for 5305-00-655-9246: 6665-00-675-9401, 5305-00-727-4791, 6695-01-100-4674 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51021-10?

Key specifications for MS51021-10: Thread Quantity Per Inch: 40; Point Style: CUP; Surface Treatment: PASSIVATE OVERALL; Material: STEEL COMP 303 OR STEEL COMP 302 OR STEEL COMP 304 OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-655-9246 still in active supply?

NSN 5305-00-655-9246 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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