The Screw,shoulder, cataloged under National Stock Number 5305-01-385-3445, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-385-3445 |
| Primary Part Number | C5088168 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Head Height | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Fastener Length | 0.194 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN |
| Shoulder Length | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Length | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | MIL-F-14072 FINISH NO. E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.133 INCHES MINIMUM AND 0.137 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.074 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND SECOND SHOULDER |
| Material Document and Classification | QQ-S-764,CL7,TYA FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.434 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| 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 |
|---|---|
| C5088168 | L3 Technologies, Inc. Div Communication Systems-East (USA) |
| Reference | Meaning |
|---|---|
| C5088168 | 3/9 Design control — primary reference Us Army Combat Surveillance and Target Acquisition Laboratory |
NSN 5305-01-385-3445 is a Screw,shoulder, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-385-3445 has 1 manufacturer part number on file: C5088168 (L3 Technologies, Inc. Div Communication Systems-East).
Key specifications for C5088168: Head Height: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Fastener Length: 0.194 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN; Shoulder Length: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM SECOND SHOULDER IN; Shoulder Length: 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM FIRST SHOULDER IN. 20 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.