The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-439-0141, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-439-0141 |
| Primary Part Number | 319-SS-20 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| Status | ACTIVE |
| Head Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.750 INCHES MINIMUM AND 0.765 INCHES MAXIMUM 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 |
|---|---|
| 319-SS-20 PRIMARY | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
NSN 5305-01-439-0141 is a Screw,externally Relieved Body, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-439-0141 has 1 manufacturer part number on file: 319-SS-20 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).
Key specifications for 319-SS-20: Head Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN. 19 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.