The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-348-3556, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-348-3556 |
| Primary Part Number | 885C615-114 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Width Across Flats | 0.0500 INCHES MINIMUM AND 0.0510 INCHES MAXIMUM IN |
| Head Height | 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ASTMA380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.339 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.154 INCHES MINIMUM AND 0.164 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 |
|---|---|
| 2-56 X .375 | Ideal Fasteners, Inc. Dba Ideal Fasteners Inc (USA) |
| 885C615-114 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 885C615-114 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-348-3556 is a Screw,cap,socket Head, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-348-3556 has 2 manufacturer part numbers on file: 2-56 X .375 (Ideal Fasteners, Inc. Dba Ideal Fasteners Inc), 885C615-114 (Lockheed Martin Corporation).
Key specifications for 885C615-114: Width Across Flats: 0.0500 INCHES MINIMUM AND 0.0510 INCHES MAXIMUM IN; Head Height: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Fastener Length: 0.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: ASTMA380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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.