The Plug,expansion, cataloged under National Stock Number 5340-01-507-8486, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-507-8486 |
| Primary Part Number | AS3121-57 |
| Item Name | Plug,expansion |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Supplementary Features | ITEM IS NOT CSI BUT HAS CRITICAL FEATURES SUCH AS HEAT TREATMENT, SURFACE FINISH, OR MATERIAL TYPE AND SPECIAL INSP. REQ.S SUCH AS MAGNETIC PARTICLE INSP. OR FLUORESCENT PENETRANT INSPECTION |
| Criticality Code Justification | SUPP |
| 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 |
|---|---|
| AS3121-57 PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| PLGA2917010 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-507-8486 is a Plug,expansion, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-507-8486 has 1 manufacturer part number on file: AS3121-57 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
Key specifications for AS3121-57: Supplementary Features: ITEM IS NOT CSI BUT HAS CRITICAL FEATURES SUCH AS HEAT TREATMENT, SURFACE FINISH, OR MATERIAL TYPE AND SPECIAL INSP. REQ.S SUCH AS MAGNETIC PARTICLE INSP. OR FLUORESCENT PENETRANT INSPECTION; Criticality Code Justification: SUPP; Special Features: MANUFACTURER'S NAME-PLUG, EXPANSION-ALUMINUM,2024-T4,LONG; STD AND .010 OVERSIZE DIAMETERS. 2 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.