PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51959-26Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-763-6961 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-763-6961 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-763-6961. Primary manufacturer part number: MS51959-26.
Features
  • Screw,machine — FSC 5305
  • Head Style: FLAT COUNTERSUNK
  • Thread Direction: RIGHT-HAND
  • Thread Length: 0.080 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
  • Screw Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
  • Fastener Length: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Head Diameter: 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-763-6961, 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 20 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-763-6961
Primary Part NumberMS51959-26
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
Head StyleFLAT COUNTERSUNK
Thread DirectionRIGHT-HAND
Thread Length0.080 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
Fastener Length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Head Diameter0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Screw Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Screw Surface TreatmentPASSIVATE
Thread Class2A A
Nondefinitive Spec/std Data3 TYPE AND 2C STYLE
Nominal Thread Diameter0.138 INCHES IN
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Internal Drive StyleCROSS RECESS TYPE 1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5305-00-022-7093 INTERCHANGEABLE
Screw,machine
5998-00-168-335822-242 INTERCHANGEABLE
Printed Wiring Board
Horizon Aerospace Llc Dba Magnetics Division
5360-00-209-7670 INTERCHANGEABLE
Spring,helical,compression
3455-00-265-711319655 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
1650-00-450-830322242 INTERCHANGEABLE
Filter Element,fluid
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
4730-01-258-9366222-42 INTERCHANGEABLE
Elbow,pipe to Tube
Cnh Industrial America Llc Dba Cnh America
5130-01-589-7367 INTERCHANGEABLE
Socket,socket Wrench
5331-01-675-823022242 INTERCHANGEABLE
O-Ring
Restek Corp
Cross-Reference Index
Part NumberManufacturer
5305PL1388766 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS51959-26 Allfast Fastening Systems, Llc (USA)
MS51959-26 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS35249-33 Zf Industrieantriebe Witten Gmbh (DEU)
342-0060-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
342-0060-000 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
847-2544-22 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
MS51959-26 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5305PL1336488 Jednolity Indeks Materialowy - Uniform Material Index (POL)
342-0060-00 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
22242ADX Airdale Express Llc Div Airdale Express (USA)
5305007636961 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
446416 Bae Systems (operations) Limited (GBR)
74455228026 Elbitamerica, Inc. (USA)
P916765604-2 Zf Industrieantriebe Witten Gmbh (DEU)
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
177006-124 Zf Industrieantriebe Witten Gmbh (DEU)
418198-26 Raytheon Company Dba Raytheon (USA)
787-08-08-002 Western Reserve Electronics Inc (USA)
22242 Federal Screw Products, Inc. (USA)
Related Parts
5305-00-022-7093INTERCHANGEABLE
SCREW,MACHINE
5998-00-168-3358INTERCHANGEABLE
PRINTED WIRING BOARD
22-242
5360-00-209-7670INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3455-00-265-7113INTERCHANGEABLE
REAMER,MACHINE
19655
1650-00-450-8303INTERCHANGEABLE
FILTER ELEMENT,FLUID
22242
4730-01-258-9366INTERCHANGEABLE
ELBOW,PIPE TO TUBE
222-42
5130-01-589-7367INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5331-01-675-8230INTERCHANGEABLE
O-RING
22242

Frequently Asked Questions

What is NSN 5305-00-763-6961?

NSN 5305-00-763-6961 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 5305-00-763-6961?

NSN 5305-00-763-6961 has 20 cross-referenced part numbers: 5305PL1388766 (Jednolity Indeks Materialowy - Uniform Material Index), MS51959-26 (Allfast Fastening Systems, Llc), MS51959-26 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS35249-33 (Zf Industrieantriebe Witten Gmbh), 342-0060-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems) and 15 more.

What NSN replaces 5305-00-763-6961?

There are 8 known substitutes for 5305-00-763-6961: 5305-00-022-7093, 5998-00-168-3358, 5360-00-209-7670 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51959-26?

Key specifications for MS51959-26: Head Style: FLAT COUNTERSUNK; Thread Direction: RIGHT-HAND; Thread Length: 0.080 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN; Screw Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-763-6961 still in active supply?

NSN 5305-00-763-6961 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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