PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM51023Setscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-753-4344 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-753-4344 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-753-4344. Primary manufacturer part number: NASM51023.
Features
  • Setscrew — FSC 5305
  • Thread Quantity Per Inch: 28
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Point Style: CUP
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Thread Series Designator: UNF
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 304 or Steel Comp 316 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-753-4344, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-753-4344
Primary Part NumberNASM51023
Item NameSetscrew
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 Quantity Per Inch28
Nominal Thread Diameter0.250 INCHES IN
Fastener Length0.375 INCHES NOMINAL IN
Point StyleCUP
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Thread Series DesignatorUNF
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread DirectionRIGHT-HAND
Head StyleHEADLESS (SETSCREW)
Internal Drive StyleHEXAGON
Thread Class3A A
Thread Length0.375 INCHES MAXIMUM IN
Width Across Flats0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
6685-00-526-5625 INTERCHANGEABLE
Indicator,pressure
Cross-Reference Index
Part NumberManufacturer
MS51023-63 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS103TYPE3STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
NASM51023 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
6685-00-526-5625INTERCHANGEABLE
INDICATOR,PRESSURE

Frequently Asked Questions

What is NSN 5305-00-753-4344?

NSN 5305-00-753-4344 is a Setscrew, 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 5305-00-753-4344?

NSN 5305-00-753-4344 has 3 cross-referenced part numbers: MS51023-63 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS103TYPE3STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC), NASM51023 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-753-4344?

There is 1 known substitute for 5305-00-753-4344: 6685-00-526-5625. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM51023?

Key specifications for NASM51023: Thread Quantity Per Inch: 28; Nominal Thread Diameter: 0.250 INCHES IN; Fastener Length: 0.375 INCHES NOMINAL IN; Point Style: CUP. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-753-4344 still in active supply?

NSN 5305-00-753-4344 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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