PartsTable
Technical Data Sheet
SSN688-128-4398 ✓ 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: PAN, head_height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN, thread_length: 0.625 INCHES MINIMUM IN, screw_material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-059-3676, 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
SSN688-128-4398
NSN: 5305-00-059-3676
FSC: 5305
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
head_stylePAN
head_height0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
thread_length0.625 INCHES MINIMUM IN
screw_materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305
fastener_length0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
end_item_identificationA4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
nominal_thread_diameter0.250 INCHES IN
screw_surface_treatmentPASSIVATE
NSN5305-00-059-3676
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SSN688-128-4398 · 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: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 9C STYLE
THREAD QUANTITY PER INCH: 28
SCREW MATERIAL: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305
MINIMUM TENSILE STRENGTH: 80000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATOR: UNF
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
HEAD HEIGHT0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 9C STYLE
THREAD QUANTITY PER INCH28
SCREW MATERIALSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH LBS
THREAD SERIES DESIGNATORUNF
END ITEM IDENTIFICATIONA4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
SCREW SURFACE TREATMENTPASSIVATE
NOMINAL THREAD DIAMETER0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
PL22-38963-FIND/ITEM NO-111Interchangeable
interchangeable cross-reference
interchangeable
MS35233-80Interchangeable
interchangeable cross-reference
interchangeable
N153P21010Interchangeable
interchangeable cross-reference
interchangeable
MS51957-80Interchangeable
interchangeable cross-reference
interchangeable
MS51958-80Interchangeable
interchangeable cross-reference
interchangeable
4398597PC4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SSN688-128-4398?
SSN688-128-4398 is a SCREW,MACHINE.
What parts can replace SSN688-128-4398?
There are 10 known substitutes for SSN688-128-4398: PL22-38963-FIND/ITEM NO-111, MS35233-80, N153P21010 and 7 more. Substitute compatibility should be verified for your specific system.
Is SSN688-128-4398 still available?
SSN688-128-4398 is currently cancelled.
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