The Sealing Compound, cataloged under National Stock Number 8030-01-381-5302, is classified within Federal Supply Class 8030 (Preservative and Sealing Compounds) of the Brushes, Paints, Sealers, and Adhesives group. The manufacturer of record is 3m France. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 8030-01-381-5302 |
| Primary Part Number | AC-350 B1/2 |
| Item Name | Sealing Compound |
| FSC / FSG | 8030 / 80 — Preservative and Sealing Compounds |
| Manufacturer | 3m France |
| Status | ACTIVE |
| Rated Drying Time | 30.000 HOURS NOMINAL |
| Supplementary Features | 5-3/4 OUNCE IN 6 OUNCE CARTRIDGE OZ |
| Specification/standard Data | 81343-AMS3276 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Quantity Within Each Unit Package | 5.750 OUNCES OZ |
| Nondefinitive Spec/std Data | B-1/2 CLASS |
| Physical Form | PASTE |
| Color | GRAY/GREY |
| Specific Usage Design | FOR AIRCRAFT INTEGRAL FUEL TANKS AND FUEL CELL CAVITIES |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AC-350 B1/2 | 3m France (FRA) |
| Reference | Meaning |
|---|---|
| MIL-S-83430 CLB 1/2 | 5/9 Secondary reference U.S. Government activity |
| CS5500 B-1/2 | 5/1 Secondary reference The Flamemaster Corporation |
| AMS3276 CLB-1/2 | 5/1 Secondary reference Sae International Dba Sae International |
| MIL-S-83430 | 5/9 Secondary reference U.S. Government activity |
| AC-350 B-1/2 | 5/9 Secondary reference 3m Company Dba 3m |
| AMS3276 CLB-1/2 | 5/9 Secondary reference U.S. Government activity |
| PR-1750 B-1/2 | 5/1 Secondary reference U.S. Government activity |
| AMS3276 | 3/9 Design control — primary reference U.S. Government activity |
| AMS3276 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 8030-01-381-5302 is a Sealing Compound, manufactured by 3m France, classified under FSC 8030, Preservative and Sealing Compounds. Status: active.
NSN 8030-01-381-5302 has 1 manufacturer part number on file: AC-350 B1/2 (3m France).
3 possible matches (shared part number, not a government interchangeability claim): 8030-01-408-3769, 8030-01-408-3770, 8030-01-686-6511. Verify interchangeability with system specifications before substitution.
Key specifications for AC-350 B1/2: Rated Drying Time: 30.000 HOURS NOMINAL; Supplementary Features: 5-3/4 OUNCE IN 6 OUNCE CARTRIDGE OZ; Specification/standard Data: 81343-AMS3276 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Quantity Within Each Unit Package: 5.750 OUNCES OZ. 9 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.