The Plug,expansion, cataloged under National Stock Number 5340-00-081-9231, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-081-9231 |
| Primary Part Number | 6777173 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Outside Diameter | 0.903 INCHES MINIMUM AND 0.908 INCHES MAXIMUM IN |
| Style Designator | CUP |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OR AISI OR SAE 1008 THRU 1022 ASSN STD SINGLE MATERIAL RESPONSE |
| Material Thickness | 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN |
| Height | 0.680 INCHES NOMINAL IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
NSN 5340-00-081-9231 is a Plug,expansion, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-081-9231 has 2 manufacturer part numbers on file: 6777173 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 6777173 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6777173: Outside Diameter: 0.903 INCHES MINIMUM AND 0.908 INCHES MAXIMUM IN; Style Designator: CUP; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OR AISI OR SAE 1008 THRU 1022 ASSN STD SINGLE MATERIAL RESPONSE; Material Thickness: 0.035 INCHES MINIMUM AND 0.039 INCHES MAXIMUM IN. 6 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.