PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS16995-55Screw,cap,socket Head

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-992-6136 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-992-6136 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-992-6136. Primary manufacturer part number: MS16995-55.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Length: 1.250 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Surface Treatment: PASSIVATE OVERALL
  • Test Data Document: 81348-FFS86 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 96906-MS16995-55 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
  • Material Document and Classification: QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 304 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-992-6136, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5305-00-992-6136
Primary Part NumberMS16995-55
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Length1.250 INCHES MAXIMUM IN
Thread Class3A A
Surface TreatmentPASSIVATE OVERALL
Test Data Document81348-FFS86 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 96906-MS16995-55 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Material Document and ClassificationQQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Nondefinitive Spec/std Data6 TYPE
Minimum Tensile Strength80 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.250 INCHES IN
Internal Drive StyleHEXAGON
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Width Across Flats0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
MaterialSTEEL COMP 304 OVERALL
Thread Quantity Per Inch20
Head Diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Head Height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Minimum Yield Strength30 POUNDS PER SQUARE INCH LBS
Fastener Length1.750 INCHES MAXIMUM IN
Head StyleFLAT CHAMFER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5305-00-988-7834MS16995-53 INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-988-7836MS16995-55 INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS16995-55 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-988-7834INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
MS16995-53
5305-00-988-7836INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
MS16995-55

Frequently Asked Questions

What is NSN 5305-00-992-6136?

NSN 5305-00-992-6136 is a Screw,cap,socket Head, 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 5305-00-992-6136?

NSN 5305-00-992-6136 has 1 cross-referenced part number: MS16995-55 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-992-6136?

There are 2 known substitutes for 5305-00-992-6136: 5305-00-988-7834, 5305-00-988-7836. Verify interchangeability with system specifications before substitution.

What are the specifications of MS16995-55?

Key specifications for MS16995-55: Thread Length: 1.250 INCHES MAXIMUM IN; Thread Class: 3A A; Surface Treatment: PASSIVATE OVERALL; Test Data Document: 81348-FFS86 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 96906-MS16995-55 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).. 20 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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