The Seal,plain Encased, cataloged under National Stock Number 5330-00-064-7879, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is John Crane, Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-064-7879 |
| Primary Part Number | ADD1140 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| Attachment Feature Quantity | 1 |
| Temp Rating | 212.0 FAHRENHEIT DEGF |
| Seal Width | 0.625 INCHES NOMINAL IN |
| Sealing Element Style | ANGULAR |
| Material Document and Classification | JOHN CRANE TEPLELITE MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT |
| Case Style | FLANGED |
| Accommodated Shaft Diameter | 0.750 INCHES NOMINAL IN |
| Material | COPPER ALLOY CASE |
| Material | PLASTIC SEALING ELEMENT |
| Attachment Method | INTEGRAL PRESS FIT BUTTONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ADD1140 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| 19718 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-00-064-7879 is a Seal,plain Encased, manufactured by John Crane, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-064-7879 has 1 manufacturer part number on file: ADD1140 (John Crane, Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-831-2670, 5905-01-396-4893, 6695-01-589-7521. Verify interchangeability with system specifications before substitution.
Key specifications for ADD1140: Attachment Feature Quantity: 1; Temp Rating: 212.0 FAHRENHEIT DEGF; Seal Width: 0.625 INCHES NOMINAL IN; Sealing Element Style: ANGULAR. 10 specifications are 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.