PartsTable
Technical Data Sheet
Download PDF

4B8404 — LOCKING PLATE,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4B8404: LOCKING PLATE,NUT AND BOLT.

The LOCKING PLATE,NUT AND BOLT is a the manufacturer industrial component. Key specifications include width: 0.969 INCHES NOMINAL IN, material: STEEL, plate_thickness: 0.188 INCHES NOMINAL IN, style_designator: STRAIGHT, mounting_hole_diameter: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-423-9456, 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
4B8404
NSN: 5340-00-423-9456
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
width0.969 INCHES NOMINAL IN
materialSTEEL
plate_thickness0.188 INCHES NOMINAL IN
style_designatorSTRAIGHT
mounting_hole_diameter0.125 INCHES NOMINAL IN
mounting_hole_quantity2
cross-sectional_shape_styleFLAT
distance_between_mounting_hole_centers1.875 INCHES NOMINAL IN
center_to_center_distance_between_center_aperture/mounting_hole_and_end_mounting_hole0.938 INCHES NOMINAL IN
NSN5340-00-423-9456
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4B8404 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 2
•
PLATE THICKNESS: 0.188 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
MOUNTING HOLE DIAMETER: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
WIDTH: 0.969 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
PLATE THICKNESS0.188 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.875 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
MOUNTING HOLE DIAMETER0.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLAT
WIDTH0.969 INCHES NOMINAL IN
MATERIALSTEEL
CENTER TO CENTER DISTANCE BETWEEN CENTER APERTURE/MOUNTING HOLE AND END MOUNTING HOLE0.938 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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
Ready to buy 4B8404?
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 4B8404?
4B8404 is a LOCKING PLATE,NUT AND BOLT.
What is the NSN for 4B8404?
4B8404 is cataloged in the U.S. Government catalog under NSN 5340-00-423-9456. 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 — 4B8404

✓ 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.