The Key, cataloged under National Stock Number 5315-01-156-5041, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Manassas. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-156-5041 |
| Primary Part Number | HX-52 |
| Item Name | Key |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Lockheed Martin Corporation Div Rms - Manassas |
| Status | ACTIVE |
| Special Test Features | WIDTH OF LEFT PRONG: .31"; WIDTH OF RIGHT PRONG: .25" |
| Supplementary Features | VARIATION A HEX: .078" |
| Specification/standard Data | 96906-MIL-STD-100A GOVERNMENT STANDARD A |
| Surface Treatment | OXIDE |
| Material | STEEL |
| 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 |
|---|---|
| HX-52 PRIMARY | Lockheed Martin Corporation Div Rms - Manassas (USA) |
| Reference | Meaning |
|---|---|
| HX-52 | 3/9 Design control — primary reference Utica Tool Co Inc |
| HX-92 | 5/9 Secondary reference Cooper Tools, Inc Dba Cooper Power Tools |
| 2828148-2 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rms - Manassas |
NSN 5315-01-156-5041 is a Key, manufactured by Lockheed Martin Corporation Div Rms - Manassas, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-156-5041 has 1 manufacturer part number on file: HX-52 (Lockheed Martin Corporation Div Rms - Manassas).
Key specifications for HX-52: Special Test Features: WIDTH OF LEFT PRONG: .31"; WIDTH OF RIGHT PRONG: .25"; Supplementary Features: VARIATION A HEX: .078"; Specification/standard Data: 96906-MIL-STD-100A GOVERNMENT STANDARD A; Special Features: MATERIAL: STEEL WITH BLACK OXIDE COATING. 5 specifications are 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.