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Technical Data Sheet
PartsTable / COMPONENT / MS51100-2
MS51100-2 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OR STEEL COMP 416 OR STEEL COMP 430 OVERALL, hole_type: DRILLED, head_style: HEXAGON, head_height: 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 2A A, hole_diameter: 0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-369-9501, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MS51100-2
NSN: 5305-01-369-9501
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 410 OR STEEL COMP 416 OR STEEL COMP 430 OVERALL
hole_typeDRILLED
head_styleHEXAGON
head_height0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class2A A
hole_diameter0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
hole_quantity1
thread_length0.359 INCHES NOMINAL IN
fastener_length0.404 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
NSN5305-01-369-9501
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS51100-2 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MINIMUM TENSILE STRENGTH: 70000 POUNDS PER SQUARE INCH LBS
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
•
FASTENER LENGTH: 0.404 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FF-S-85 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 10P STYLE
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH LBS
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
FASTENER LENGTH0.404 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONFF-S-85 FED SPEC ALL MATERIAL RESPONSES OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNF
HOLE CONFIGURATION STYLEHEXAGON FLATS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD HEIGHT0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
122104Interchangeable
interchangeable cross-reference
interchangeable
FFS85TYPEIISTYLE10PInterchangeable
interchangeable cross-reference
interchangeable
MS35291-57Interchangeable
interchangeable cross-reference
interchangeable
6022232Interchangeable
interchangeable cross-reference
interchangeable
605122LInterchangeable
interchangeable cross-reference
interchangeable
100-15S6-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51100-2?
MS51100-2 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace MS51100-2?
There are 9 known substitutes for MS51100-2: 122104, FFS85TYPEIISTYLE10P, MS35291-57 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51100-2?
MS51100-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-369-9501. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026