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C46-57 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

C46-57: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: KNURLED NO. 1, head_height: 0.160 INCHES NOMINAL IN, head_diameter: 0.312 INCHES NOMINAL IN, thread_length: 0.810 INCHES NOMINAL IN, screw_material: COPPER ALLOY, fastener_length: 0.930 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-182-9467, 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
C46-57
NSN: 5305-00-182-9467
FSC: 5305 — Screws
CAGE: 79960 — ZENITH FUEL SYSTEMS LLC (USA)
SPECIFICATIONS
head_styleKNURLED NO. 1
head_height0.160 INCHES NOMINAL IN
head_diameter0.312 INCHES NOMINAL IN
thread_length0.810 INCHES NOMINAL IN
screw_materialCOPPER ALLOY
fastener_length0.930 INCHES NOMINAL IN
special_featuresPROVIDE WITH POINT 0.115 IN.MIN. AND 0.118 IN MAX. DIA,TAPERED TO 25.0 DEGREE POINT WITH 0.094 IN. SEAT; TIP OF POINT GROUND 0.010 IN. TO 0.030 IN. FLAT IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
NSN5305-00-182-9467
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: C46-57 · 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
•
HEAD HEIGHT: 0.160 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.930 INCHES NOMINAL IN
•
THREAD LENGTH: 0.810 INCHES NOMINAL IN
•
HEAD STYLE: KNURLED NO. 1
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: COPPER ALLOY
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.160 INCHES NOMINAL IN
FASTENER LENGTH0.930 INCHES NOMINAL IN
THREAD LENGTH0.810 INCHES NOMINAL IN
HEAD STYLEKNURLED NO. 1
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALCOPPER ALLOY
SPECIAL FEATURESPROVIDE WITH POINT 0.115 IN.MIN. AND 0.118 IN MAX. DIA,TAPERED TO 25.0 DEGREE POINT WITH 0.094 IN. SEAT; TIP OF POINT GROUND 0.010 IN. TO 0.030 IN. FLAT IN
INTERNAL DRIVE STYLESLOT
HEAD DIAMETER0.312 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

No substitute or cross-reference records for this part.

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 C46-57?
C46-57 is a SCREW,MACHINE.
What is the NSN for C46-57?
C46-57 is cataloged in the U.S. Government catalog under NSN 5305-00-182-9467. 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.