PartsTable
Technical Data Sheet
Download PDF

F78-4 — RECTIFIER,SEMICONDUCTOR DEVICE,U

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

F78-4: RECTIFIER,SEMICONDUCTOR DEVICE,U.

RECTIFIER,SEMICONDUCTOR DEVICE,U. Key specifications include material: SILICON, usage_design: EXTERNAL, overall_width: 0.900 INCHES MAXIMUM IN, overall_height: 0.310 INCHES MAXIMUM IN, overall_length: 2.002 INCHES MAXIMUM IN, inside_diameter: 0.187 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-030-9075, 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
F78-4
NSN: 5325-00-030-9075
NIINs: 000309075, 004658187
FSC: 5325 — Fastening Devices
CAGE: 72314 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialSILICON
ring_styleE
usage_designEXTERNAL
overall_width0.900 INCHES MAXIMUM IN
overall_height0.310 INCHES MAXIMUM IN
overall_length2.002 INCHES MAXIMUM IN
inside_diameter0.187 INCHES NOMINAL IN
major_thickness0.020 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
operating_temp_range-65.0 TO 175.0 CELSIUS DEGC
casehardening_indicatorCASEHARDENED
terminal_type_and_quantity5 TURRET
NSN5325-00-030-9075
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: F78-4 · 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
•
USAGE DESIGN: EXTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.020 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.187 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: CASEHARDENED
•
RING STYLE: E
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.020 INCHES NOMINAL IN
INSIDE DIAMETER0.187 INCHES NOMINAL IN
CASEHARDENING INDICATORCASEHARDENED
RING STYLEE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
Ready to buy F78-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is F78-4?
F78-4 is a RECTIFIER,SEMICONDUCTOR DEVICE,U.
What is the NSN for F78-4?
F78-4 is cataloged in the U.S. Government catalog under NSN 5325-00-030-9075. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — F78-4

✓ 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.