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PBF1041A5U13 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

PBF1041A5U13: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN, head_height: 0.187 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-508-6955, 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
PBF1041A5U13
NSN: 5306-00-508-6955
FSC: 5306 — Bolts
CAGE: 27624 — SPS TECHNOLOGIES LLC DBA PB FASTENERS DIV PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON
grip_length0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
head_height0.187 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
thread_length0.315 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length1.137 INCHES MINIMUM AND 1.204 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentNICKEL AND CADMIUM AND CHROMATE OVERALL
width_between_flats0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
NSN5306-00-508-6955
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: PBF1041A5U13 · 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: 0.187 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.137 INCHES MINIMUM AND 1.204 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: STSBS000 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.315 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.187 INCHES NOMINAL IN
FASTENER LENGTH1.137 INCHES MINIMUM AND 1.204 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSTSBS000 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.315 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES 8
VAL23611-5D13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS2978A05U013Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
STSBG000A05U13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
68484-5A13Reference document
Same NSN cross-reference
Reference document — Secondary reference
VS2978A05U13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AIC2263A05U13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is PBF1041A5U13?
PBF1041A5U13 is a BOLT,CLOSE TOLERANCE.
What parts can replace PBF1041A5U13?
There are 8 known substitutes for PBF1041A5U13: VAL23611-5D13, VS2978A05U013, STSBG000A05U13 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PBF1041A5U13?
PBF1041A5U13 is cataloged in the U.S. Government catalog under NSN 5306-00-508-6955. 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.