The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-450-3236, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Corp Div Accurate Screw Machine Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-450-3236 |
| Primary Part Number | X63168 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| Status | ACTIVE |
| Head Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-F-14072-E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A581, A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | KNURLED NO. 4 |
| Thread Direction | RIGHT-HAND |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Material | STEEL OVERALL |
| Head Diameter | 0.735 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 |
|---|---|
| X63168 PRIMARY | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| 12981719 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 12981719 | 5/9 Secondary reference Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
NSN 5305-01-450-3236 is a Screw,externally Relieved Body, manufactured by Accurate Screw Machine Corp Div Accurate Screw Machine Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-450-3236 has 2 manufacturer part numbers on file: X63168 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation), 12981719 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for X63168: Head Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 1.047 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-F-14072-E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN. 12 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.