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Technical Data Sheet
PartsTable / COMPONENT / 4001397-2
4001397-2 ✓ 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,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.188 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.375 INCHES NOMINAL IN, thread_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-068-5508, 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
4001397-2
NSN: 5305-01-068-5508
FSC: 5305
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFLAT CHAMFER
head_height0.188 INCHES NOMINAL IN
thread_class2A A
head_diameter0.375 INCHES NOMINAL IN
thread_length0.250 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
shoulder_length0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM FIRST SHOULDER IN
width_across_flats0.125 INCHES NOMINAL IN
NSN5305-01-068-5508
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4001397-2 · 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
•
INTERNAL DRIVE STYLE: HEXAGON
•
MATERIAL: STEEL COMP 303 OVERALL
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
THREAD LENGTH: 0.250 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD SERIES DESIGNATOR: UNF
•
FASTENER LENGTH: 0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 303 OVERALL
SHOULDER SHAPEROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD LENGTH0.250 INCHES NOMINAL IN
SHOULDER LENGTH0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM FIRST SHOULDER IN
THREAD SERIES DESIGNATORUNF
FASTENER LENGTH0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
HEAD HEIGHT0.188 INCHES NOMINAL IN
THREAD CLASS2A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
AN6H12AInterchangeable
interchangeable cross-reference
interchangeable
5306PL1494856Interchangeable
interchangeable cross-reference
interchangeable
10176932Interchangeable
interchangeable cross-reference
interchangeable
4428Interchangeable
interchangeable cross-reference
interchangeable
D-1603Interchangeable
interchangeable cross-reference
interchangeable
VI819Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4001397-2?
4001397-2 is a SCREW,SHOULDER.
What parts can replace 4001397-2?
There are 18 known substitutes for 4001397-2: AN6H12A, 5306PL1494856, 10176932 and 15 more. Substitute compatibility should be verified for your specific system.
Is 4001397-2 still available?
4001397-2 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026