The Plug,expansion, cataloged under National Stock Number 5340-01-479-5039, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-479-5039 |
| Primary Part Number | AS3125-03 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| AS3125-03 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS3125 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS3125-03 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-479-5039 is a Plug,expansion, manufactured by Sae International Dba Sae International, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-479-5039 has 1 manufacturer part number on file: AS3125-03 (Sae International Dba Sae International).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-488-8272, 5340-01-688-8191. Verify interchangeability with system specifications before substitution.
Key specifications for AS3125-03: Criticality Code Justification: AGAV; Special Features: ITEM PREVIOUSLY KNOWN AS PLUG, EXPANSION, AIRCRAFT; End Item Identification: VALVE BLOCK SUBASSEMBLY; PIN TRUNNION ASSEMBLY; F/A 18E MODEL CODE TO SUPPORT ECP 6038; F/A-18F MODEL CODE IN SUPPORT OF ECP 6038. 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.