PartsTable
Technical Data Sheet
2979-14 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 4.000 INCHES NOMINAL IN, head_height: 0.468 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.8770 INCHES MINIMUM AND 0.8775 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-545-8391, 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
2979-14
NSN: 5306-01-545-8391
FSC: 5306
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON
grip_length4.000 INCHES NOMINAL IN
head_height0.468 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.8770 INCHES MINIMUM AND 0.8775 INCHES MAXIMUM IN
thread_length1.270 INCHES NOMINAL IN
fastener_length5.270 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCHROMIUM GRIP
width_between_flats1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
nominal_thread_diameter0.875 INCHES IN
NSN5306-01-545-8391
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2979-14 · 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
THREAD CLASS: 3A A
MATERIAL: STEEL COMP H11 OVERALL
SURFACE TREATMENT: CHROMIUM GRIP
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH: 14
NOMINAL THREAD DIAMETER: 0.875 INCHES IN
GRIP LENGTH: 4.000 INCHES NOMINAL IN
GRIP DIAMETER: 0.8770 INCHES MINIMUM AND 0.8775 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
MATERIALSTEEL COMP H11 OVERALL
SURFACE TREATMENTCHROMIUM GRIP
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH14
NOMINAL THREAD DIAMETER0.875 INCHES IN
GRIP LENGTH4.000 INCHES NOMINAL IN
GRIP DIAMETER0.8770 INCHES MINIMUM AND 0.8775 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
FASTENER LENGTH5.270 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
B540041003Interchangeable
interchangeable cross-reference
interchangeable
CN1293Interchangeable
interchangeable cross-reference
interchangeable
200036-21-CC20Interchangeable
interchangeable cross-reference
interchangeable
22CT48Interchangeable
interchangeable cross-reference
interchangeable
25005-10Interchangeable
interchangeable cross-reference
interchangeable
100114-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2979-14?
2979-14 is a BOLT,CLOSE TOLERANCE.
What parts can replace 2979-14?
There are 15 known substitutes for 2979-14: B540041003, CN1293, 200036-21-CC20 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2979-14?
2979-14 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-545-8391. This indicates validated use in U.S. government and defense supply chains.
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