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SRS109298 ✓ 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 OVERALL, hole_type: DRILLED, head_style: FILLISTER, head_height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.365 INCHES MINIMUM AND 0.385 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 5305-00-153-9338, 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
SRS109298
NSN: 5305-00-153-9338
FSC: 5305
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
head_styleFILLISTER
head_height0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity1
thread_length0.719 INCHES MINIMUM IN
fastener_length2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
NSN5305-00-153-9338
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SRS109298 · 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
•
HOLE QUANTITY: 1
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
FIRST DIAMETER FROM HEAD: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.062 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE QUANTITY1
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.771 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
FIRST DIAMETER FROM HEAD0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
HOLE DIAMETER0.062 INCHES NOMINAL IN
HEAD HEIGHT0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONPWA998,FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL
SECOND DIAMETER FROM HEAD0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
752Interchangeable
interchangeable cross-reference
interchangeable
K752Interchangeable
interchangeable cross-reference
interchangeable
457388Interchangeable
interchangeable cross-reference
interchangeable
109298Interchangeable
interchangeable cross-reference
interchangeable
10113676Interchangeable
interchangeable cross-reference
interchangeable
110358Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SRS109298?
SRS109298 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace SRS109298?
There are 7 known substitutes for SRS109298: 752, K752, 457388 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SRS109298?
SRS109298 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-153-9338. 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