The Seal,plain Encased, cataloged under National Stock Number 5330-01-645-9835, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-645-9835 |
| Primary Part Number | AS-1660-0416 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc |
| Status | ACTIVE |
| Material Document and Classification | ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| Case Style | SHOULDERED |
| Material | STEEL COMP 302 SPRING |
| 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 |
|---|---|
| AS-1660-0416 PRIMARY | Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc (USA) |
| 12446494 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5330-01-645-9835 is a Seal,plain Encased, manufactured by Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-645-9835 has 2 manufacturer part numbers on file: AS-1660-0416 (Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc), 12446494 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for AS-1660-0416: Material Document and Classification: ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING; Case Style: SHOULDERED; Special Features: THE JACKET MATERIAL IS TRELLEBORG AMERICAN VARISEAL AEROLON 9, 85% POLYTETRAFLUOROETHYLENE (PTFE), 15% GRAPHITE FILLED. SPRING WIRE DIAMETER IS 0.012 INCHES. SPRING MUST HAVE 130 TO 190 COILS WHEN ASSEMBLED IN SEAL. SPRING WELD SHALL BE ABLE TO WITHSTAND A TENSILE FORCE OF 3LBS MINIMUM. LBS; Part Name Assigned by Controlling Agency: SEAL, SPRING ENERGIZED. 3 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.