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450181P3 — STUD,STEPPED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

450181P3: STUD,STEPPED.

The STUD,STEPPED is a the manufacturer industrial component. Key specifications include material: STEEL, thread_class: 3A NUT THREAD A, thread_length: 0.438 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD IN, overall_length: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN, shank_diameter: 0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-085-8295, 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
450181P3
NSN: 5307-00-085-8295
FSC: 5307 — Studs
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL
thread_class3A NUT THREAD A
thread_length0.438 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD IN
overall_length1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
shank_diameter0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
style_designatorSTEPPED
thread_directionRIGHT-HAND NUT THREAD
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.250 INCHES NUT THREAD IN
thread_pitch_diameters+0.2840 TO 0.2855 INCHES STUD THREAD IN
thread_quantity_per_inch18 STUD THREAD
NSN5307-00-085-8295
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 450181P3 · 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
•
SHANK DIAMETER: 0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.438 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD IN
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: STEPPED
•
THREAD PITCH DIAMETERS: +0.2840 TO 0.2855 INCHES STUD THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 7456 ASSN STD SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.221 INCHES MINIMUM AND 0.231 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.438 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM STUD THREAD IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSTEPPED
THREAD PITCH DIAMETERS+0.2840 TO 0.2855 INCHES STUD THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 7456 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
OTHER ITEMS IN FSC 5307 — Studs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 450181P3?
450181P3 is a STUD,STEPPED.
What is the NSN for 450181P3?
450181P3 is cataloged in the U.S. Government catalog under NSN 5307-00-085-8295. 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.