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Technical Data Sheet
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JSFB11 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

JSFB11: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-665-9973, 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
JSFB11
NSN: 5306-01-665-9973
NIINs: 016659973, 016659976, 016659977, 016659978, 016659979, 016659981, 016659982, 016659999, 016660003
FSC: 5306 — Bolts
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
Part NumberJSFB11
NSN5306-01-665-9973
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: JSFB11 · 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
SUBSTITUTES & CROSS-REFERENCES 1
JSFB11-14-37Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 JSFB11?
JSFB11 is a BOLT,CLOSE TOLERANCE.
What parts can replace JSFB11?
There is 1 known substitute for JSFB11: JSFB11-14-37. Substitute compatibility should be verified for your specific system.
What is the NSN for JSFB11?
JSFB11 is cataloged in the U.S. Government catalog under NSN 5306-01-665-9973. This indicates validated use in U.S. government and defense supply chains.
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