The Guide,spring, cataloged under National Stock Number 5342-01-145-7532, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Thomas Instrument, Incorporated. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-01-145-7532 |
| Primary Part Number | 3219-121 |
| Item Name | Guide,spring |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Thomas Instrument, Incorporated |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOYM,1.610 IN. DIA; 0.630 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3219-121 | Thomas Instrument, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 3219-121 | 3/9 Design control — primary reference U.S. Government activity |
| 3219-121 | 5/9 Secondary reference Woodward Hrt, Inc. Dba Woodward Hrt Inc |
NSN 5342-01-145-7532 is a Guide,spring, manufactured by Thomas Instrument, Incorporated, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-145-7532 has 1 manufacturer part number on file: 3219-121 (Thomas Instrument, Incorporated).
Key specifications for 3219-121: General Characteristics Item Description: ALUMINUM ALLOYM,1.610 IN. DIA; 0.630 IN. LG IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.