The Sealer,chemical, cataloged under National Stock Number 6850-01-528-0566, is classified within Federal Supply Class 6850 (Miscellaneous Chemical Specialties) of the Chemicals and Chemical Products group. The manufacturer of record is Ppg Industries Australia Pty Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6850-01-528-0566 |
| Primary Part Number | PR-1776M B-2 |
| Item Name | Sealer,chemical |
| FSC / FSG | 6850 / 68 — Miscellaneous Chemical Specialties |
| Manufacturer | Ppg Industries Australia Pty Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PR-1776M B-2 | Ppg Industries Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 6850PL1893496 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| PR-1776M B-2 1QT | 3/2 Design control — primary reference U.S. Government activity |
| PR-1776M B-2 1QT | 5/2 Secondary reference U.S. Government activity |
| PR-1776M B-2 | 5/9 Secondary reference Ppg Industries Australia Pty Ltd |
| PR-1776M B-2 | 5/9 Secondary reference U.S. Government activity |
| BMS5-45 CLB-2 | 5/1 Secondary reference U.S. Government activity |
NSN 6850-01-528-0566 is a Sealer,chemical, manufactured by Ppg Industries Australia Pty Ltd, classified under FSC 6850, Miscellaneous Chemical Specialties. Status: active.
NSN 6850-01-528-0566 has 1 manufacturer part number on file: PR-1776M B-2 (Ppg Industries Australia Pty Ltd).
1 possible match (shared part number, not a government interchangeability claim): 8030-01-707-1891. Verify interchangeability with system specifications before substitution.
Key specifications for PR-1776M B-2: Special Features: HIGH TEMPERATURE; LOW DENSITY; SERVICE TEMPERATURE RANGE OF MINUS 65 DEG TO PLUS 250 DEG F; POLYSULFIDE, COLOR: BROWN, PHYSICAL FORM: PASTE, MATERIAL: RUBBER SYNTHETIC, DESIGNED FOR AIRCRAFT INTEGRAL FUEL TANKS, SEPARATE CATALYST, 1 QUART KIT. DEGF. 0 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.