PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21095-6012Bolt,machine

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-01-097-5840 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-097-5840 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-097-5840. Primary manufacturer part number: MS21095-6012.
Features
  • Bolt,machine — FSC 5306
  • Material Document and Classification: MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Width Between Flats: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
  • Grip Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • Features Provided: FINISHED HEAD
  • Head Style: HEXAGON
  • Head Height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
  • Fastener Length: 1.376 INCHES MINIMUM AND 1.422 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 431 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-01-097-5840, is classified within Federal Supply Class 5306 (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 18 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5306-01-097-5840
Primary Part NumberMS21095-6012
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Material Document and ClassificationMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Width Between Flats0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
Grip Length0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
Head StyleHEXAGON
Head Height0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN
Fastener Length1.376 INCHES MINIMUM AND 1.422 INCHES MAXIMUM IN
Locking FeaturePATCH OR PELLET OR STRIP THREADS
Nominal Thread Diameter0.375 INCHES IN
MaterialSTEEL COMP 431 OVERALL
Thread Quantity Per Inch24
Thread Series DesignatorUNF
Thread Length0.631 INCHES MINIMUM AND 0.682 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Surface TreatmentPASSIVATE OVERALL
Minimum Tensile Strength140000 POUNDS PER SQUARE INCH LBS
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-060-2540 INTERCHANGEABLE
Screw,cap,socket Head
5305-00-115-6184 INTERCHANGEABLE
Screw,cap,socket Head
5320-00-117-7516NASM21090 INTERCHANGEABLE
Rivet,solid
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-340-5424NAS1189E06P6 INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-567-5903NAS1189-06T5L INTERCHANGEABLE
Screw,cap,socket Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-936-4983AES40K500878EE0A15 INTERCHANGEABLE
Setscrew
The American Society of Mechanical Engineers
5305-01-039-7553MS51965-117 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-01-112-78642585163-17 INTERCHANGEABLE
Bolt,machine
Naval Ship Systems Command
5305-01-291-4512 INTERCHANGEABLE
Screw,machine
5305-01-346-1579 INTERCHANGEABLE
Screw,cap,socket Head
Cross-Reference Index
Part NumberManufacturer
MS21095-6012 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18240 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-060-2540INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-00-115-6184INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5320-00-117-7516INTERCHANGEABLE
RIVET,SOLID
NASM21090
5305-00-340-5424INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NAS1189E06P6
5305-00-567-5903INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
NAS1189-06T5L
5305-00-936-4983INTERCHANGEABLE
SETSCREW
AES40K500878EE0A15
5305-01-039-7553INTERCHANGEABLE
SETSCREW
MS51965-117
5306-01-112-7864INTERCHANGEABLE
BOLT,MACHINE
2585163-17
5305-01-291-4512INTERCHANGEABLE
SCREW,MACHINE
5305-01-346-1579INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-429-5654INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5305-01-476-9158INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
218071931A

Frequently Asked Questions

What is NSN 5306-01-097-5840?

NSN 5306-01-097-5840 is a Bolt,machine, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-01-097-5840?

NSN 5306-01-097-5840 has 2 cross-referenced part numbers: MS21095-6012 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-18240 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-01-097-5840?

There are 12 known substitutes for 5306-01-097-5840: 5305-00-060-2540, 5305-00-115-6184, 5320-00-117-7516 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21095-6012?

Key specifications for MS21095-6012: Material Document and Classification: MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Width Between Flats: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN; Grip Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Features Provided: FINISHED HEAD. 18 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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