PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51957-82Screw,machine

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-841-7348 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-841-7348 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-841-7348. Primary manufacturer part number: MS51957-82.
Features
  • Screw,machine — FSC 5305
  • Screw Surface Treatment: PASSIVATE
  • Thread Quantity Per Inch: 20
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Nondefinitive Spec/std Data: 3 TYPE AND 9C STYLE
  • Screw Material: STEEL COMP 304
  • Head Style: PAN
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-841-7348, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-841-7348
Primary Part NumberMS51957-82
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Screw Surface TreatmentPASSIVATE
Thread Quantity Per Inch20
Nominal Thread Diameter0.250 INCHES IN
Nondefinitive Spec/std Data3 TYPE AND 9C STYLE
Screw MaterialSTEEL COMP 304
Head StylePAN
Thread DirectionRIGHT-HAND
Head Diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
Head Height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Screw Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
Thread Class2A A
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Internal Drive StyleCROSS RECESS TYPE 1
Fastener Length0.875 INCHES MAXIMUM IN
Thread Length0.875 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-00-071-1317 INTERCHANGEABLE
Screw,machine
5305-01-448-3318 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
MS51957-82 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-071-1317INTERCHANGEABLE
SCREW,MACHINE
5305-01-448-3318INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5305-00-841-7348?

NSN 5305-00-841-7348 is a Screw,machine, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-841-7348?

NSN 5305-00-841-7348 has 2 cross-referenced part numbers: MS51957-82 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS92 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-841-7348?

There are 2 known substitutes for 5305-00-841-7348: 5305-00-071-1317, 5305-01-448-3318. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51957-82?

Key specifications for MS51957-82: Screw Surface Treatment: PASSIVATE; Thread Quantity Per Inch: 20; Nominal Thread Diameter: 0.250 INCHES IN; Nondefinitive Spec/std Data: 3 TYPE AND 9C STYLE. 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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