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Technical Data Sheet
PartsTable / COMPONENT / 203659-001
203659-001 ✓ 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,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 3A A, fastener_length: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_direction: RIGHT-HAND, surface_treatment: PASSIVATE OVERALL, nominal_thread_diameter: 0.112 INCHES 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 5305-01-252-6883, 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
203659-001
NSN: 5305-01-252-6883
FSC: 5305
CAGE: 88932 — NORTHROP GRUMMAN CORP PRECISION PRODUCTS PLANT (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class3A A
fastener_length0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_diameter0.112 INCHES IN
first_diameter_from_head0.030 INCHES NOMINAL IN
thread_quantity_per_inch40
externally_relieved_body_diameter_quantity1
distance_from_largest_bearing_surface_of_head_to_end_of_first_diameter0.094 INCHES NOMINAL IN
NSN5305-01-252-6883
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 203659-001 · 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
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.094 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD CLASS: 3A A
•
THREAD QUANTITY PER INCH: 40
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.094 INCHES NOMINAL IN
FASTENER LENGTH0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.112 INCHES IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD CLASS3A A
THREAD QUANTITY PER INCH40
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
SURFACE TREATMENTPASSIVATE OVERALL
FIRST DIAMETER FROM HEAD0.030 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
5305PL1370179Interchangeable
interchangeable cross-reference
interchangeable
74455244010Interchangeable
interchangeable cross-reference
interchangeable
12-Z-1007-3Interchangeable
interchangeable cross-reference
interchangeable
144300150Interchangeable
interchangeable cross-reference
interchangeable
MS16995-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203659-001?
203659-001 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace 203659-001?
There are 5 known substitutes for 203659-001: 5305PL1370179, 74455244010, 12-Z-1007-3 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203659-001?
203659-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-252-6883. 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