PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51959-84Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-719-5003 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-719-5003 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-719-5003. Primary manufacturer part number: MS51959-84.
Features
  • Screw,machine — FSC 5305
  • Head Style: FLAT COUNTERSUNK
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Head Diameter: 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Screw Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-719-5003, 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 7 commercial cross-references from 7 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
NSN5305-00-719-5003
Primary Part NumberMS51959-84
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
Internal Drive StyleCROSS RECESS TYPE 1
Head Diameter0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.250 INCHES IN
Fastener Length1.250 INCHES NOMINAL IN
Thread Length1.150 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Thread Class2A A
Screw Surface TreatmentPASSIVATE
Thread DirectionRIGHT-HAND
Screw MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
Screw Material Document and Classification66 FED STD ALL MATERIAL RESPONSES
Thread Quantity Per Inch20
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3110-00-156-142722312E INTERCHANGEABLE
Bearing,roller,self-Aligning
Skf Usa Inc.
4130-00-369-819622-312 INTERCHANGEABLE
Valve,suction
Thermo King Corporation Dba Phoenix Global Distirbution.
5330-00-470-613122312 INTERCHANGEABLE
Seal,oil
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
2920-00-780-08122-2312 INTERCHANGEABLE
Ring
Precision Aerospace Corporation Dba Precision Engine Control
5962-01-124-2249MM54C42J INTERCHANGEABLE
Microcircuit,digital
National Semiconductor Corporation
5331-01-124-6390 INTERCHANGEABLE
O-Ring
5330-01-188-084022312 INTERCHANGEABLE
Seal,plain
Kaydon Custom Filtration Corporation
3670-01-398-685022-312 INTERCHANGEABLE
Laminating Machine,printed Circu
Gc/waldom Inc
Cross-Reference Index
Part NumberManufacturer
22312ADX Airdale Express Llc Div Airdale Express (USA)
5305PL0799716 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS51959-84 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
22312 Federal Screw Products, Inc. (USA)
MS51959-84 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS35249-91 Zf Industrieantriebe Witten Gmbh (DEU)
6931056ITEM 19 Naval Sea Systems Command (USA)
Related Parts
3110-00-156-1427INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
22312E
4130-00-369-8196INTERCHANGEABLE
VALVE,SUCTION
22-312
5330-00-470-6131INTERCHANGEABLE
SEAL,OIL
22312
2920-00-780-0812INTERCHANGEABLE
RING
2-2312
5962-01-124-2249INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MM54C42J
5331-01-124-6390INTERCHANGEABLE
O-RING
5330-01-188-0840INTERCHANGEABLE
SEAL,PLAIN
22312
3670-01-398-6850INTERCHANGEABLE
LAMINATING MACHINE,PRINTED CIRCU
22-312

Frequently Asked Questions

What is NSN 5305-00-719-5003?

NSN 5305-00-719-5003 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 5305-00-719-5003?

NSN 5305-00-719-5003 has 7 cross-referenced part numbers: 22312ADX (Airdale Express Llc Div Airdale Express), 5305PL0799716 (Jednolity Indeks Materialowy - Uniform Material Index), MS51959-84 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 22312 (Federal Screw Products, Inc.), MS51959-84 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 2 more.

What NSN replaces 5305-00-719-5003?

There are 8 known substitutes for 5305-00-719-5003: 3110-00-156-1427, 4130-00-369-8196, 5330-00-470-6131 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51959-84?

Key specifications for MS51959-84: Head Style: FLAT COUNTERSUNK; Internal Drive Style: CROSS RECESS TYPE 1; Head Diameter: 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-719-5003 still in active supply?

NSN 5305-00-719-5003 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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