The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-476-0638, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products. Government technical data includes 16 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. 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 | 5305-01-476-0638 |
| Primary Part Number | 411239-7 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products |
| Status | ACTIVE |
| Head Height | 0.075 INCHES NOMINAL IN |
| External Thread Tolerance Class | 2A A |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Pitch in Millimeters | 0.58 |
| Thread Length | 0.141 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Nonstandard Thread Pitch Diameter | +0.0140 TO 0.0225 INCHES IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.212 INCHES NOMINAL 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 |
|---|---|
| 411239-7 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
NSN 5305-01-476-0638 is a Screw,externally Relieved Body, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-476-0638 has 1 manufacturer part number on file: 411239-7 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-623-4498. Verify interchangeability with system specifications before substitution.
Key specifications for 411239-7: Head Height: 0.075 INCHES NOMINAL IN; External Thread Tolerance Class: 2A A; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Pitch in Millimeters: 0.58. 16 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.