The Setscrew, cataloged under National Stock Number 5305-01-412-4895, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-412-4895 |
| Primary Part Number | 150-6404868-39 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Length | 0.500 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281 CL B FORM 1 COND HF FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | HALF DOG |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | NICKEL ALLOY R-405 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 211055631 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 150-6404868-39 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 0.250-20UNC-3AX0.500 NICU | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 211055631 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 0.250-20UNC-3AX0.500 NICU | 3/1 Design control — primary reference U.S. Government activity |
| 0.250-20UNC-3AX 0.500 NICU | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 122-5486623 PC13 | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5305-01-412-4895 is a Setscrew, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-412-4895 has 2 manufacturer part numbers on file: 211055631 (Huntington Ingalls Inc Div Newport News Shipbuilding), 150-6404868-39 (Naval Sea Systems Command).
Key specifications for 150-6404868-39: Width Across Flats: 0.125 INCHES NOMINAL IN; Fastener Length: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Length: 0.500 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-281 CL B FORM 1 COND HF FED SPEC SINGLE MATERIAL RESPONSE FASTENER. 15 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.