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125D174 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

125D174: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DEE CHAMFER, head_height: 0.260 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.871 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, thread_length: 0.700 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-298-4872, 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
125D174
NSN: 5306-00-298-4872
FSC: 5306 — Bolts
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDEE CHAMFER
head_height0.260 INCHES NOMINAL IN
thread_class3A A
head_diameter0.871 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
thread_length0.700 INCHES MINIMUM IN
fastener_length1.220 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
nominal_thread_diameter0.500 INCHES IN
first_diameter_from_head0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NSN5306-00-298-4872
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 125D174 · 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: 0.260 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.220 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.531 INCHES NOMINAL IN
•
THREAD LENGTH: 0.700 INCHES MINIMUM IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.094 INCHES NOMINAL FIRST HOLE IN
•
FIRST DIAMETER FROM HEAD: 0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.260 INCHES NOMINAL IN
FASTENER LENGTH1.220 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.531 INCHES NOMINAL IN
THREAD LENGTH0.700 INCHES MINIMUM IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.094 INCHES NOMINAL FIRST HOLE IN
FIRST DIAMETER FROM HEAD0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.420 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.480 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 125D174?
125D174 is a BOLT,EXTERNALLY RELIEVED BODY.
What is the NSN for 125D174?
125D174 is cataloged in the U.S. Government catalog under NSN 5306-00-298-4872. 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.