MIL-STD-1310H(NAVY)
(3) Apply a thin film of Antiseize zinc dust - Petrolatum (A-A-59313) to the cleaned areas of the mating surfaces and to the threads of all hardware (bolts and nuts) to be used. Alternatively, and preferred for dissimilar metal junctions, a conductive gasket (A-A-59398) may be used in place of antiseize for topside and wet space installations below deck. It should be noted that many aircraft antennas, such as those used on LCAC's have precut conductive gaskets specifically made for them.
(4) Bolt item to the mating surface and torque all bolts as specified/required.
(5) Seal and preserve the junction for installations located topside or in wet spaces.
(a) Apply Permatex Form-A-Gasket #2 (CAGE 01232; NSN 8030-00-849-0071) or equivalent non-acidic sealing compound around the perimeter of the mating surfaces and mounting hardware.
(b) Use finger or orangewood stick to contour and mold sealing compound to the edges of the material around the mating surfaces.
(c) Paint/repaint scraped and brushed areas. c. Class C bonding procedure.
(1) Clean (e.g., sand, file, grind, brush, scrape, etc. down to smooth, bright metal) the surfaces/areas where the bond strap is to be mounted approximately ΒΌ inch larger than the bond strap end lug, or boss if installing a Type I bond strap topside. Use care not to gouge deep pits or grooves in the mating surfaces. The distance between the mounting points shall be as short as practical to minimize impedance of the strap. Weld bosses in place for Type I bond strap installations topside. Repaint areas disturbed by welding (see 5.1.3.3.d and figure 11).
(2) Wipe down all surfaces to be mated with MIL-C-81302 non-residue type cleaning solvent to ensure they are clean and free of paint chips, metal filings and other residue.
(3) Apply a thin film of Antiseize zinc dust - Petrolatum (A-A-59313) to the cleaned areas of the mating surfaces and to the threads of all hardware (bolts and nuts) to be used.
(4) Bolt strap in place and torque bolt to 25 foot-pounds.
(5) Seal and preserve the junction for Type II bond straps installed topside or in wet spaces.
(a) Apply Permatex Form-A-Gasket #2 (CAGE 01232; NSN 8030-00-849-0071) or equivalent non-acidic sealing compound around the perimeter of the mating surfaces and mounting hardware.
(b) Use finger or orangewood stick to contour and mold sealing compound to the edges of the material around the mating surfaces.
(c) Paint/repaint scraped and brushed areas.
5.1.3.2 Hardware for class B and C bonding. All hardware (e.g., straps, bosses, bolts, nuts, and washers) used for new or replacement shipboard Class C bonding shall conform to MIL-DTL-24749 requirements. Unless otherwise specified in an installation control drawing (ICD) or ship specification, hardware for equipment and metallic items requiring Class B bonding shall be CRES 316.
5.1.3.3 Class C bonding/bond straps. Bond strap requirements shall be documented in an EM Control
Topside Arrangement drawing as specified in the applicable drawing development or revision procedure. a. Excess or unnecessary bond straps shall not be installed (see 4.2).
b. Unless removal and reinstallation is required in the course of production, still functional bond straps
previously approved shall not be removed or replaced. Note: this does not apply for new construction ships.
c. When removal and reinstallation is required in the course of production, bond straps fabricated from previously approved materials shall be replaced with those conforming to MIL-DTL-24749.
d. Equipment cases, cabinets, and enclosures shall not be damaged or altered for bond strap installation. Holes shall not be drilled into and boss(es) shall not be welded to, an equipment case, cabinet, or enclosure without written approval from cognizant ISEA.
(1) Factory-installed grounding studs, bolts, or threaded holes shall be used as the bond strap tie-point to the equipment (when available).
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