The Retainer,nut and Bolt, cataloged under National Stock Number 5340-01-558-1838, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-558-1838 |
| Item Name | Retainer,nut and Bolt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Grip Height | 0.125 INCHES NOMINAL IN |
| Style Designator | BARREL |
| Material Thickness | 0.161 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Material | IRON ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| BACR10AL4AC | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-558-1838 is a Retainer,nut and Bolt, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-669-3878. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-558-1838: Overall Height: 0.336 INCHES NOMINAL IN; Grip Height: 0.125 INCHES NOMINAL IN; Style Designator: BARREL; Overall Length: 0.608 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN. 5 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.