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Technical Data Sheet
PartsTable / COMPONENT / G6979-103
G6979-103 ✓ 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 SCREW,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: PAN NO. 2, head_height: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.188 INCHES MINIMUM 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 5305-00-182-5327, 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
G6979-103
NSN: 5305-00-182-5327
FSC: 5305
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_stylePAN NO. 2
head_height0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length0.188 INCHES MINIMUM IN
fastener_length0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.138 INCHES IN
first_diameter_from_head0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
NSN5305-00-182-5327
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: G6979-103 · 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
•
FIRST DIAMETER FROM HEAD: 0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.279 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
HEAD HEIGHT: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
FIRST DIAMETER FROM HEAD0.093 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.279 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
HEAD HEIGHT0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH32
INTERNAL DRIVE STYLESLOT
THREAD LENGTH0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
10049442Interchangeable
interchangeable cross-reference
interchangeable
204270Interchangeable
interchangeable cross-reference
interchangeable
G6979-103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G6979-103?
G6979-103 is a SCREW,EXTERNALLY RELIEVED BODY.
What parts can replace G6979-103?
There are 3 known substitutes for G6979-103: 10049442, 204270, G6979-103. Substitute compatibility should be verified for your specific system.
What is the NSN for G6979-103?
G6979-103 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-182-5327. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026