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1943386 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1943386: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.160 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN, fastener_length: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND DICHROMATE OVERALL, width_between_flats: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-451-3425, 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
1943386
NSN: 5305-00-451-3425
FSC: 5305 — Screws
CAGE: 1LW55 — BORGWARNER PDS (ANDERSON), L.L.C. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.160 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
fastener_length0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND DICHROMATE OVERALL
width_between_flats0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
internal_drive_styleSLOT
nonmachine_thread_styleDOG TYPE (TYPE B OR C)
extended_washer_diameter0.370 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
extended_washer_thickness0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
nonmachine_nominal_thread_diameter0.164 INCHES IN
NSN5305-00-451-3425
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1943386 · 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: 0.164 INCHES IN
•
EXTENDED WASHER THICKNESS: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.160 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.370 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
•
NONMACHINE THREAD STYLE: DOG TYPE (TYPE B OR C)
•
HEAD STYLE: HEXAGON EXTENDED WASHER
•
WIDTH BETWEEN FLATS: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.164 INCHES IN
EXTENDED WASHER THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
HEAD HEIGHT0.160 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
FASTENER LENGTH0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.370 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
NONMACHINE THREAD STYLEDOG TYPE (TYPE B OR C)
HEAD STYLEHEXAGON EXTENDED WASHER
WIDTH BETWEEN FLATS0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND DICHROMATE OVERALL
INTERNAL DRIVE STYLESLOT
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1943386?
1943386 is a SCREW,TAPPING.
What is the NSN for 1943386?
1943386 is cataloged in the U.S. Government catalog under NSN 5305-00-451-3425. 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.