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C7985-4-18 — SCREW,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

C7985-4-18: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include grip_length: 1.125 INCHES NOMINAL IN, fastener_length: 1.528 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-284-8757, 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
C7985-4-18
NSN: 5305-01-284-8757
FSC: 5305 — Screws
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
grip_length1.125 INCHES NOMINAL IN
fastener_length1.528 INCHES NOMINAL IN
NSN5305-01-284-8757
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: C7985-4-18 · 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
•
FASTENER LENGTH: 1.528 INCHES NOMINAL IN
•
GRIP LENGTH: 1.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.528 INCHES NOMINAL IN
GRIP LENGTH1.125 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 2
121558-4-A18PSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VT1694F4-18Same 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 C7985-4-18?
C7985-4-18 is a SCREW,CLOSE TOLERANCE.
What parts can replace C7985-4-18?
There are 2 known substitutes for C7985-4-18: 121558-4-A18P, VT1694F4-18. Substitute compatibility should be verified for your specific system.
What is the NSN for C7985-4-18?
C7985-4-18 is cataloged in the U.S. Government catalog under NSN 5305-01-284-8757. 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.