The Seal Ring,metal, cataloged under National Stock Number 5330-00-104-8159, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-104-8159 |
| Primary Part Number | 6861708 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Outside Diameter | 1.747 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.6120 INCHES MINIMUM AND 0.6340 INCHES MAXIMUM IN |
| Ring Style | EXPANDING CONCENTRIC |
| Material | STEEL OVERALL |
| Metallic Hardness Rating | 140.0 MINIMUM BRINELL HULTGREN AND 220.0 MAXIMUM BRINELL HULTGREN |
| 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 |
|---|---|
| 6861708 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| EU51837 | 5/9 Secondary reference Rolls-Royce Airlines |
NSN 5330-00-104-8159 is a Seal Ring,metal, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-104-8159 has 1 manufacturer part number on file: 6861708 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6861708: Overall Width: 0.1000 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Outside Diameter: 1.747 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN; Joint Style: VERTICAL JOINT. 7 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.