The Seal,mechanical, cataloged under National Stock Number 5330-01-128-6853, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-128-6853 |
| Item Name | Seal,mechanical |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF GLAND P/N 1057482,GASKET P/N 1057486,O-RING P/N 050419,STATIONARY UNIT P/N 1056439,ROTARY SEAL RING ASSEMBLY P/N 1056330,O-RING P/N 050526,LOCK RING ASSEMBLY P/N 1056184 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| C31151 | 3/2 Design control — primary reference U.S. Government activity |
| 31151 | 5/9 Secondary reference A W Chesterton Co Div Sealing Device Division |
NSN 5330-01-128-6853 is a Seal,mechanical, classified under FSC 5330, Packing and Gasket Materials. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6125-01-137-5532, 5950-01-190-6512, 5340-01-345-8187. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-01-128-6853: General Characteristics Item Description: CONSISTS OF GLAND P/N 1057482,GASKET P/N 1057486,O-RING P/N 050419,STATIONARY UNIT P/N 1056439,ROTARY SEAL RING ASSEMBLY P/N 1056330,O-RING P/N 050526,LOCK RING ASSEMBLY P/N 1056184. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.