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3180979-07L1 — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3180979-07L1: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, head_style: HEXAGON, head_height: 0.234 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.650 INCHES NOMINAL IN, fastener_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-347-4292, 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
3180979-07L1
NSN: 5306-01-347-4292
FSC: 5306 — Bolts
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
head_styleHEXAGON
head_height0.234 INCHES NOMINAL IN
thread_class3A A
thread_length0.650 INCHES NOMINAL IN
fastener_length1.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.5625 INCHES NOMINAL IN
nominal_thread_diameter0.375 INCHES IN
first_diameter_from_head0.312 INCHES NOMINAL IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5306-01-347-4292
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3180979-07L1 · 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
•
HEAD HEIGHT: 0.234 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 0.650 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
FIRST DIAMETER FROM HEAD: 0.312 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.234 INCHES NOMINAL IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH0.650 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONZZZY
FIRST DIAMETER FROM HEAD0.312 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.5625 INCHES NOMINAL IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.350 INCHES NOMINAL 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 1
3180979-07Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3180979-07L1?
3180979-07L1 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 3180979-07L1?
There is 1 known substitute for 3180979-07L1: 3180979-07. Substitute compatibility should be verified for your specific system.
What is the NSN for 3180979-07L1?
3180979-07L1 is cataloged in the U.S. Government catalog under NSN 5306-01-347-4292. 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.