PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51959-43Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-765-4257 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-765-4257 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-765-4257. Primary manufacturer part number: MS51959-43.
Features
  • Screw,machine — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Head Diameter: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Screw Surface Treatment: PASSIVATE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nondefinitive Spec/std Data: 3 TYPE AND 2C STYLE
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-765-4257, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 14 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
NSN5305-00-765-4257
Primary Part NumberMS51959-43
Item NameScrew,machine
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 DirectionRIGHT-HAND
Head Diameter0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Screw Surface TreatmentPASSIVATE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/std Data3 TYPE AND 2C STYLE
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Nominal Thread Diameter0.164 INCHES IN
Screw MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Screw Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Internal Drive StyleCROSS RECESS TYPE 1
Thread Length0.182 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
Head StyleFLAT COUNTERSUNK
Thread Class2A A
Fastener Length0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-054-6668 INTERCHANGEABLE
Screw,machine
6645-00-449-264722800260 INTERCHANGEABLE
Wheel,winding
Waltham Aircraft Clock Corp
1560-00-475-9113100-067-5 INTERCHANGEABLE
Pad,sway Brace,pylon
Bell Textron Inc
2520-00-619-22203855M13 INTERCHANGEABLE
Cover Gear Fork
Meritor Heavy Vehicle Systems, Llc
4730-00-785-735322264 INTERCHANGEABLE
Reducer,pipe
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
9540-00-942-9162 INTERCHANGEABLE
Angle,structural
1945-01-073-134322264 INTERCHANGEABLE
Gimbal Assembly
Hydranautics
2910-01-198-302127336 INTERCHANGEABLE
Nozzle,fuel Injection
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5120-01-480-767222264 INTERCHANGEABLE
Inserter,seal
Exceltec Intl Corp
4730-01-495-846915800-192 INTERCHANGEABLE
Strainer Element,sediment
Mag Aerospace Industries, Llc Div Safran Cabins
Cross-Reference Index
Part NumberManufacturer
22264 Federal Screw Products, Inc. (USA)
158001-92 Zf Industrieantriebe Witten Gmbh (DEU)
5305007654257 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
5-11-1841-34 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
100067-5 Symbolic Displays, Inc (USA)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
12633-002 Dynalec Corporation (USA)
5305PL1377297 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS51959-43 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51959-43 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5305PL0948094 Jednolity Indeks Materialowy - Uniform Material Index (POL)
855094-00 Defense Reduction Agency (USA)
70-10183-06 Computer Products Inc Boschert Div (USA)
2074074-3404 Raytheon Company Dba Raytheon Co (USA)
245349 Sinclair Technologies Inc. (CAN)
Related Parts
5305-00-054-6668INTERCHANGEABLE
SCREW,MACHINE
6645-00-449-2647INTERCHANGEABLE
WHEEL,WINDING
22800260
1560-00-475-9113INTERCHANGEABLE
PAD,SWAY BRACE,PYLON
100-067-5
2520-00-619-2220INTERCHANGEABLE
COVER GEAR FORK
3855M13
4730-00-785-7353INTERCHANGEABLE
REDUCER,PIPE
22264
9540-00-942-9162INTERCHANGEABLE
ANGLE,STRUCTURAL
1945-01-073-1343INTERCHANGEABLE
GIMBAL ASSEMBLY
22264
2910-01-198-3021INTERCHANGEABLE
NOZZLE,FUEL INJECTION
27336
5120-01-480-7672INTERCHANGEABLE
INSERTER,SEAL
22264
4730-01-495-8469INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
15800-192
4720-01-541-0820INTERCHANGEABLE
TUBING,NONMETALLIC
1120-10B-GRN-250
5340-01-673-4612INTERCHANGEABLE
PLATE,MOUNTING
12633002

Frequently Asked Questions

What is NSN 5305-00-765-4257?

NSN 5305-00-765-4257 is a Screw,machine, 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 5305-00-765-4257?

NSN 5305-00-765-4257 has 15 cross-referenced part numbers: 22264 (Federal Screw Products, Inc.), 158001-92 (Zf Industrieantriebe Witten Gmbh), 5305007654257 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 5-11-1841-34 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center), 100067-5 (Symbolic Displays, Inc) and 10 more.

What NSN replaces 5305-00-765-4257?

There are 12 known substitutes for 5305-00-765-4257: 5305-00-054-6668, 6645-00-449-2647, 1560-00-475-9113 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51959-43?

Key specifications for MS51959-43: Thread Direction: RIGHT-HAND; Head Diameter: 0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN; Thread Quantity Per Inch: 32; Screw Surface Treatment: PASSIVATE. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-765-4257 still in active supply?

NSN 5305-00-765-4257 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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