The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-182-4270, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Tempco Engineering Inc Dba Lmi Aerospace. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Prescott Aerospace, Inc. Dba Prescott Aerospace Inc (CAGE 0BR71); Tempco Engineering Inc Dba Lmi Aerospace (CAGE 60609); Glen-Bar Engineering Co (CAGE 0A860) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-182-4270 |
| Primary Part Number | 387-3920 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Tempco Engineering Inc Dba Lmi Aerospace |
| Status | ACTIVE |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 387-3920 | Prescott Aerospace, Inc. Dba Prescott Aerospace Inc (USA) |
| 387-3920 PRIMARY | Tempco Engineering Inc Dba Lmi Aerospace (USA) |
| 387-3920 | Glen-Bar Engineering Co (USA) |
| Reference | Meaning |
|---|---|
| 387-3920 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| 387-3920 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 387-3920 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
NSN 5340-01-182-4270 is a Retainer,helical Compression Spr, manufactured by Tempco Engineering Inc Dba Lmi Aerospace, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-182-4270 has 3 manufacturer part numbers on file: 387-3920 (Prescott Aerospace, Inc. Dba Prescott Aerospace Inc), 387-3920 (Tempco Engineering Inc Dba Lmi Aerospace), 387-3920 (Glen-Bar Engineering Co).
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.