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6401-8220 — STUD,SNAPSLIDE FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6401-8220: STUD,SNAPSLIDE FASTENER.

The STUD,SNAPSLIDE FASTENER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, neck_length: 0.058 INCHES NOMINAL IN, stud_length: 1.125 INCHES NOMINAL IN, neck_diameter: 0.187 INCHES NOMINAL IN, shank_diameter: 0.162 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN, shoulder_length: 0.075 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-031-4900, 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
6401-8220
NSN: 5325-01-031-4900
FSC: 5325 — Fastening Devices
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
neck_length0.058 INCHES NOMINAL IN
stud_length1.125 INCHES NOMINAL IN
neck_diameter0.187 INCHES NOMINAL IN
shank_diameter0.162 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
shoulder_length0.075 INCHES NOMINAL IN
largest_diameter0.312 INCHES NOMINAL IN
snapslide_stud_styleSTUD
NSN5325-01-031-4900
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6401-8220 · 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
•
SHANK DIAMETER: 0.162 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
NECK LENGTH: 0.058 INCHES NOMINAL IN
•
SNAPSLIDE STUD STYLE: STUD
•
STUD LENGTH: 1.125 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
NECK DIAMETER: 0.187 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.075 INCHES NOMINAL IN
•
LARGEST DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.162 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
NECK LENGTH0.058 INCHES NOMINAL IN
SNAPSLIDE STUD STYLESTUD
STUD LENGTH1.125 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
NECK DIAMETER0.187 INCHES NOMINAL IN
SHOULDER LENGTH0.075 INCHES NOMINAL IN
LARGEST DIAMETER0.312 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
2S-1-075-093Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 6401-8220?
6401-8220 is a STUD,SNAPSLIDE FASTENER.
What parts can replace 6401-8220?
There is 1 known substitute for 6401-8220: 2S-1-075-093. Substitute compatibility should be verified for your specific system.
What is the NSN for 6401-8220?
6401-8220 is cataloged in the U.S. Government catalog under NSN 5325-01-031-4900. 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.