The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-445-4072, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 22 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-445-4072 |
| Primary Part Number | LO1505 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Head Height | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Fastener Length | 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Thread Length | 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | KNURLED NO. 4 |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY MATERIAL |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| Head Diameter | 0.312 INCHES MINIMUM AND 0.327 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 | S |
| Part Number | Manufacturer |
|---|---|
| LO1505 | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| Reference | Meaning |
|---|---|
| LL-HX3-5234 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| 408-SS-20 | 5/9 Secondary reference Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| 704-.750-SS-12 | 3/1 Design control — primary reference Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| 11-4914-5 | 5/9 Secondary reference Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| PO004454072 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
NSN 5305-01-445-4072 is a Screw,externally Relieved Body, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 5305, Screws. Status: active.
NSN 5305-01-445-4072 has 1 manufacturer part number on file: LO1505 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)).
Key specifications for LO1505: Head Height: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Fastener Length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Special Test Features: SPECIAL QUALITY CONTROL TESTING; Thread Length: 0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN. 22 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.