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6601121 ITEM 2 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6601121 ITEM 2: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_length: 4.500 INCHES MINIMUM IN, special_features: BOLT, LAG HLSCREW, nominal_thread_diameter: 0.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-533-7736, 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
6601121 ITEM 2
NSN: 5306-01-533-7736
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_length4.500 INCHES MINIMUM IN
special_featuresBOLT, LAG HLSCREW
nominal_thread_diameter0.500 INCHES IN
NSN5306-01-533-7736
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6601121 ITEM 2 · 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 LENGTH: 4.500 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
THREAD LENGTH4.500 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
SPECIAL FEATURESBOLT, LAG HLSCREW
MATERIALSTEEL CORROSION RESISTING OVERALL
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
0.500X4.5 LG CRESSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6601121 ITEM 2?
6601121 ITEM 2 is a BOLT,MACHINE.
What parts can replace 6601121 ITEM 2?
There is 1 known substitute for 6601121 ITEM 2: 0.500X4.5 LG CRES. Substitute compatibility should be verified for your specific system.
What is the NSN for 6601121 ITEM 2?
6601121 ITEM 2 is cataloged in the U.S. Government catalog under NSN 5306-01-533-7736. 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.