PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51958-33Screw,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-701-5051 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-701-5051 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-701-5051. Primary manufacturer part number: MS51958-33.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES
  • Thread Length: 0.825 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Thread Quantity Per Inch: 40
  • Screw Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • Minimum Tensile Strength: 80000 POUNDS PER SQUARE INCH LBS
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-701-5051, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-701-5051
Primary Part NumberMS51958-33
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
StatusACTIVE
Screw Material Document and Classification66 FED STD ALL MATERIAL RESPONSES
Thread Length0.825 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Thread Class2A A
Thread Quantity Per Inch40
Screw Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Minimum Tensile Strength80000 POUNDS PER SQUARE INCH LBS
Internal Drive StyleCROSS RECESS TYPE 1
Thread Series DesignatorUNF
Head StylePAN
Head Height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316
Nominal Thread Diameter0.138 INCHES IN
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Fastener Length0.875 INCHES NOMINAL IN
Screw Surface TreatmentPASSIVATE
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-873-6467318464-1 INTERCHANGEABLE
Bracket,mounting
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
6625-01-003-422304352 INTERCHANGEABLE
Indicator,digital Display
Three-Five Systems Inc
5998-01-021-62403184641 INTERCHANGEABLE
Circuit Card Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6250-01-444-779031-8464-1 INTERCHANGEABLE
Lampholder
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
N97P12014 Ametek Inc Div Aerospace and Defense (USA)
MS51958-33 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51958-33 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
318464-1 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5340-00-873-6467INTERCHANGEABLE
BRACKET,MOUNTING
318464-1
6625-01-003-4223INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
04352
5998-01-021-6240INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3184641
6250-01-444-7790INTERCHANGEABLE
LAMPHOLDER
31-8464-1

Frequently Asked Questions

What is NSN 5305-00-701-5051?

NSN 5305-00-701-5051 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: active.

What are the part numbers for NSN 5305-00-701-5051?

NSN 5305-00-701-5051 has 4 cross-referenced part numbers: N97P12014 (Ametek Inc Div Aerospace and Defense), MS51958-33 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51958-33 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 318464-1 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5305-00-701-5051?

There are 4 known substitutes for 5305-00-701-5051: 5340-00-873-6467, 6625-01-003-4223, 5998-01-021-6240 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51958-33?

Key specifications for MS51958-33: Screw Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES; Thread Length: 0.825 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN; Thread Class: 2A A; Thread Quantity Per Inch: 40. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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