PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51963-139Setscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-725-0164 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-725-0164 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-725-0164. Primary manufacturer part number: MS51963-139.
Features
  • Setscrew — FSC 5305
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 4 STYLE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Head Style: HEADLESS (SETSCREW)
  • Thread Class: 3A A
  • Internal Drive Style: HEXAGON
Applications
  • Applications requiring Steel Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-725-0164, 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 15 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-725-0164
Primary Part NumberMS51963-139
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
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 4 STYLE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Head StyleHEADLESS (SETSCREW)
Thread Class3A A
Internal Drive StyleHEXAGON
Thread Quantity Per Inch13
Width Across Flats0.250 INCHES NOMINAL IN
Nominal Thread Diameter0.500 INCHES IN
Thread Length0.750 INCHES MINIMUM IN
Fastener Length0.750 INCHES NOMINAL IN
Point StyleCUP
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5340-00-013-3703DS-934268 INTERCHANGEABLE
Seat,helical Compression Spring
Eaton Aerospace, Llc Dba Jackson South
3110-00-156-1731 INTERCHANGEABLE
Bearing,ball,thrust
5950-00-175-70904841 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5950-00-223-39284841 INTERCHANGEABLE
Coil,radio Frequency
Pax Mfg Corp Hammarlund Mfg Co Div
6110-00-237-3788 INTERCHANGEABLE
Controller,motor
5950-00-575-0839215-11 INTERCHANGEABLE
Coil,radio Frequency
Wilco Corp
5305-00-724-5831 INTERCHANGEABLE
Setscrew
5330-01-006-37634841 INTERCHANGEABLE
Gasket
The Gorman-Rupp Company Div Gorman-Rupp
5330-01-225-0767 INTERCHANGEABLE
Seal,ring,metal
5950-01-255-3390 INTERCHANGEABLE
Coil,electrical
Cross-Reference Index
Part NumberManufacturer
5305007250164 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
MS51965-91 Zf Industrieantriebe Witten Gmbh (DEU)
2CT365 Oshkosh Corp (USA)
4841 Gunnebo Johnson Corporation Div Gunnebo Industries, Inc. (USA)
MS51963-139 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
7-785-181200 Grove U.s. Llc Dba Grove Us Llc (USA)
MS51963-139 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
E141050C075 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5340-00-013-3703INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
DS-934268
3110-00-156-1731INTERCHANGEABLE
BEARING,BALL,THRUST
5950-00-175-7090INTERCHANGEABLE
TRANSFORMER,POWER
4841
5950-00-223-3928INTERCHANGEABLE
COIL,RADIO FREQUENCY
4841
6110-00-237-3788INTERCHANGEABLE
CONTROLLER,MOTOR
5950-00-575-0839INTERCHANGEABLE
COIL,RADIO FREQUENCY
215-11
5305-00-724-5831INTERCHANGEABLE
SETSCREW
5330-01-006-3763INTERCHANGEABLE
GASKET
4841
5330-01-225-0767INTERCHANGEABLE
SEAL,RING,METAL
5950-01-255-3390INTERCHANGEABLE
COIL,ELECTRICAL

Frequently Asked Questions

What is NSN 5305-00-725-0164?

NSN 5305-00-725-0164 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 5305-00-725-0164?

NSN 5305-00-725-0164 has 8 cross-referenced part numbers: 5305007250164 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), MS51965-91 (Zf Industrieantriebe Witten Gmbh), 2CT365 (Oshkosh Corp), 4841 (Gunnebo Johnson Corporation Div Gunnebo Industries, Inc.), MS51963-139 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 3 more.

What NSN replaces 5305-00-725-0164?

There are 10 known substitutes for 5305-00-725-0164: 5340-00-013-3703, 3110-00-156-1731, 5950-00-175-7090 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51963-139?

Key specifications for MS51963-139: Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 4 STYLE; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-725-0164 still in active supply?

NSN 5305-00-725-0164 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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