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PBF1583-2 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PBF1583-2: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 OVERALL, head_style: DISHED HEXAGON, grip_length: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, head_height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-348-4886, 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
PBF1583-2
NSN: 5306-01-348-4886
FSC: 5306 — Bolts
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56400 OVERALL
head_styleDISHED HEXAGON
grip_length0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
head_height0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length0.316 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length0.426 INCHES MINIMUM AND 0.456 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
NSN5306-01-348-4886
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PBF1583-2 · 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: 63.0 MICROINCHES GRIP
•
HEAD HEIGHT: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.426 INCHES MINIMUM AND 0.456 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.316 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: DISHED HEXAGON
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
FASTENER LENGTH0.426 INCHES MINIMUM AND 0.456 INCHES MAXIMUM IN
THREAD LENGTH0.316 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEDISHED HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
111282-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
AIC4412-4-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SC3106-4-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
03A201-4-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 PBF1583-2?
PBF1583-2 is a BOLT,CLOSE TOLERANCE.
What parts can replace PBF1583-2?
There are 4 known substitutes for PBF1583-2: 111282-2, AIC4412-4-2, SC3106-4-2 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PBF1583-2?
PBF1583-2 is cataloged in the U.S. Government catalog under NSN 5306-01-348-4886. 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.