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Technical Data Sheet
PartsTable / COMPONENT / MS9177-02
MS9177-02 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.190 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, screw_material: IRON ALLOY 660, fastener_length: 0.240 INCHES MINIMUM AND 0.260 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 5305-00-494-2052, 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
MS9177-02
NSN: 5305-00-494-2052
FSC: 5305
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
thread_class2A A
thread_length0.190 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
screw_materialIRON ALLOY 660
fastener_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
hardness_rating247.0 BRINELL HULTGREN MINIMUM AND 341.0 BRINELL HULTGREN MAXIMUM
thread_directionRIGHT-HAND
width_between_flats0.181 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
nominal_thread_diameter0.138 INCHES IN
extended_washer_diameter0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
thread_quantity_per_inch40
NSN5305-00-494-2052
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS9177-02 · 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
•
THREAD CLASS: 2A A
•
HEAD HEIGHT: 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
•
SCREW MATERIAL: IRON ALLOY 660
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD STYLE: DOUBLE HEXAGON EXTENDED WASHER
•
EXTENDED WASHER THICKNESS: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.190 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
HEAD HEIGHT0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
SCREW MATERIALIRON ALLOY 660
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE
THREAD DIRECTIONRIGHT-HAND
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
EXTENDED WASHER THICKNESS0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
THREAD LENGTH0.190 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.138 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
U-174/UInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-9177/2Interchangeable
interchangeable cross-reference
interchangeable
M9177/2-1Interchangeable
interchangeable cross-reference
interchangeable
626Interchangeable
interchangeable cross-reference
interchangeable
10194253Interchangeable
interchangeable cross-reference
interchangeable
119346Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS9177-02?
MS9177-02 is a SCREW,MACHINE.
What parts can replace MS9177-02?
There are 14 known substitutes for MS9177-02: U-174/U, MIL-DTL-9177/2, M9177/2-1 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9177-02?
MS9177-02 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-494-2052. 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