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4075434 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4075434: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, head_style: HEXAGON, head_height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.215 INCHES NOMINAL IN, fastener_length: 0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-317-9018, 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
4075434
NSN: 5306-01-317-9018
FSC: 5306 — Bolts
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
head_styleHEXAGON
head_height0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_class3A A
thread_length0.215 INCHES NOMINAL IN
fastener_length0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.435 INCHES NOMINAL IN
end_item_identificationF100PW0229 ENGINE/CORE MOD
nominal_thread_diameter0.250 INCHES IN
first_diameter_from_head0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
third_diameter_from_head0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
NSN5306-01-317-9018
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4075434 · 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
•
HEAD HEIGHT: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.215 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: PWA 96 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.126 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER: 0.236 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
FASTENER LENGTH0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
THREAD LENGTH0.215 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONPWA 96 MFR REF SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.126 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.236 INCHES NOMINAL IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
5306PL1499177Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4075434?
4075434 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 4075434?
There is 1 known substitute for 4075434: 5306PL1499177. Substitute compatibility should be verified for your specific system.
What is the NSN for 4075434?
4075434 is cataloged in the U.S. Government catalog under NSN 5306-01-317-9018. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.