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7979330 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7979330: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include diameter: 0.4355 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_length: 2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN, undercut_width: 0.156 INCHES NOMINAL IN, first_end_style: CHAMFERED, undercut_radius: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-740-9379, 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
7979330
NSN: 5315-00-740-9379
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
diameter0.4355 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_length2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN
undercut_width0.156 INCHES NOMINAL IN
first_end_styleCHAMFERED
undercut_radius0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
effective_length1.438 INCHES NOMINAL IN
style_designatorGROOVE
undercut_diameter0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
first_hole_diameter0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
second_hole_diameter0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
NSN5315-00-740-9379
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7979330 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
UNDERCUT WIDTH: 0.156 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.031 INCHES NOMINAL IN
•
UNDERCUT DIAMETER: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
FIRST END LOCATION: BOTH ENDS
•
HOLE ARRANGEMENT STYLE: BOTH END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: GROOVE
TECHNICAL CHARACTERISTICS
UNDERCUT WIDTH0.156 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.031 INCHES NOMINAL IN
UNDERCUT DIAMETER0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
FIRST END LOCATIONBOTH ENDS
HOLE ARRANGEMENT STYLEBOTH END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
STYLE DESIGNATORGROOVE
DIAMETER0.4355 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
OVERALL LENGTH2.484 INCHES MINIMUM AND 2.516 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 7
FC14774Reference document
Same NSN cross-reference
Reference document — Secondary reference
7409379Reference document
Same NSN cross-reference
Reference document — Secondary reference
7-12-26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1746H8Reference document
Same NSN cross-reference
Reference document — Secondary reference
KC5162Reference document
Same NSN cross-reference
Reference document — Secondary reference
1746H8ZSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7979330?
7979330 is a PIN,GROOVED,HEADLESS.
What parts can replace 7979330?
There are 7 known substitutes for 7979330: FC14774, 7409379, 7-12-26 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7979330?
7979330 is cataloged in the U.S. Government catalog under NSN 5315-00-740-9379. 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.