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431B502PC32 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

431B502PC32: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include head_height: 1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 1.859 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN, thread_length: 1.625 INCHES NOMINAL IN, fastener_length: 3.500 INCHES NOMINAL IN, special_features: TAPERED THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-404-8296, 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
431B502PC32
NSN: 5306-00-404-8296
FSC: 5306 — Bolts
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
head_height1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
thread_class2A A
head_diameter1.859 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
thread_length1.625 INCHES NOMINAL IN
fastener_length3.500 INCHES NOMINAL IN
special_featuresTAPERED THREADS
width_across_flats0.875 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
first_diameter_from_head1.069 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
distance_from_largest_bearing_surface_of_head_to_end_of_first_diameter1.875 INCHES NOMINAL IN
NSN5306-00-404-8296
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 431B502PC32 · 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
•
WIDTH ACROSS FLATS: 0.875 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
•
HEAD HEIGHT: 1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.500 INCHES NOMINAL IN
•
THREAD LENGTH: 1.625 INCHES NOMINAL IN
•
FIRST DIAMETER FROM HEAD: 1.069 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 1.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.875 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
HEAD HEIGHT1.230 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
FASTENER LENGTH3.500 INCHES NOMINAL IN
THREAD LENGTH1.625 INCHES NOMINAL IN
FIRST DIAMETER FROM HEAD1.069 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.875 INCHES NOMINAL IN
SPECIAL FEATURESTAPERED THREADS
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD CLASS2A A
HEAD DIAMETER1.859 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 431B502PC32?
431B502PC32 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 431B502PC32?
431B502PC32 is cataloged in the U.S. Government catalog under NSN 5306-00-404-8296. 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.