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121418 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

121418: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, fastener_length: 1.000 INCHES NOMINAL IN, internal_drive_style: SLOT, nondefinitive_spec/std_data: 2S STYLE, nonmachine_nominal_thread_diameter: 0.268 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-012-1418, 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
121418
NSN: 5305-00-012-1418
NIINs: 000121418, 008949727
FSC: 5305 — Screws
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
fastener_length1.000 INCHES NOMINAL IN
internal_drive_styleSLOT
nondefinitive_spec/std_data2S STYLE
nonmachine_nominal_thread_diameter0.268 INCHES IN
NSN5305-00-012-1418
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121418 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.268 INCHES IN
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
NONDEFINITIVE SPEC/STD DATA: 2S STYLE
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.268 INCHES IN
FASTENER LENGTH1.000 INCHES NOMINAL IN
HEAD STYLEFLAT COUNTERSUNK
NONDEFINITIVE SPEC/STD DATA2S STYLE
INTERNAL DRIVE STYLESLOT
SUBSTITUTES & CROSS-REFERENCES 1
FFS111STYLE2SReference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121418?
121418 is a SCREW,SHOULDER.
What parts can replace 121418?
There is 1 known substitute for 121418: FFS111STYLE2S. Substitute compatibility should be verified for your specific system.
What is the NSN for 121418?
121418 is cataloged in the U.S. Government catalog under NSN 5305-00-012-1418. 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.