The Setscrew, cataloged under National Stock Number 5305-01-004-6924, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Long-Lok, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-01-004-6924 |
| Primary Part Number | LL57XD40J3 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok, Llc |
| Status | CANCELLED |
| Width Across Flats | 0.050 INCHES NOMINAL IN |
| Fastener Length | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Nondefinitive Spec/std Data | 1 TYPE AND 4 STYLE |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303F OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 323 OR STEEL COMP 324 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 385 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LL57XD40J3 | Long-Lok, Llc (USA) |
| Reference | Meaning |
|---|---|
| FF-S-200 | 4/1 Identification reference U.S. Government activity |
| NAS1081C04D3N | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS51021-102 | 5/9 Secondary reference U.S. Government activity |
| 5305PL0759518 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS18064-5 | 5/9 Secondary reference U.S. Government activity |
| MS51021-102 | 3/2 Design control — primary reference U.S. Government activity |
| 003-007941-102 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| NAS1081C04D3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-004-6924 is a Setscrew, manufactured by Long-Lok, Llc, classified under FSC 5305, Screws. Status: cancelled.
NSN 5305-01-004-6924 has 1 manufacturer part number on file: LL57XD40J3 (Long-Lok, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-334-2814. Verify interchangeability with system specifications before substitution.
Key specifications for LL57XD40J3: Width Across Flats: 0.050 INCHES NOMINAL IN; Fastener Length: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN. 17 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.
NSN 5305-01-004-6924 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.