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PBF1543-8-50D — PBF1543-8-50D

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PBF1543-8-50D: PBF1543-8-50D.

The PBF1543-8-50D is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-457-5702, 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
PBF1543-8-50D
NSN: 5306-01-457-5702
FSC: 5306 — Bolts
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
Part NumberPBF1543-8-50D
NSN5306-01-457-5702
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PBF1543-8-50D · 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
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
HEAD HEIGHT: 0.281 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.759 INCHES MINIMUM AND 3.789 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.649 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.111 INCHES NOMINAL THREADS IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5842 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.281 INCHES NOMINAL IN
FASTENER LENGTH3.759 INCHES MINIMUM AND 3.789 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.649 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.111 INCHES NOMINAL THREADS IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5842 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLESPLINE DRIVE SHEAR HEAD
SUBSTITUTES & CROSS-REFERENCES 1
3D0146-8-50DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PBF1543-8-50D?
PBF1543-8-50D is a PBF1543-8-50D.
What parts can replace PBF1543-8-50D?
There is 1 known substitute for PBF1543-8-50D: 3D0146-8-50D. Substitute compatibility should be verified for your specific system.
What is the NSN for PBF1543-8-50D?
PBF1543-8-50D is cataloged in the U.S. Government catalog under NSN 5306-01-457-5702. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.