The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-656-1228, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Gulf Coast Holdings, Inc Dba Unidynamics. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-656-1228 |
| Primary Part Number | 0.25-20UNC-2AX1.375 CRES |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Gulf Coast Holdings, Inc Dba Unidynamics |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 50104-11-SD4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 50271000PL ITEM46 | Gulf Coast Holdings, Inc Dba Unidynamics (USA) |
| 50271000PL ITEM46D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 0.25-20UNC-2AX1.375D4 CRES | Naval Inventory Control Point Mechanicsburg (USA) |
| 0.25-20UNC-2AX1.375 CRES | J J Fasteners Inc Dba Jj Fasteners Inc (USA) |
| 50104-11-S | Gulf Coast Holdings, Inc Dba Unidynamics (USA) |
| 0.25-20UNC-2AX1.375 CRES PRIMARY | Gulf Coast Holdings, Inc Dba Unidynamics (USA) |
| 50271000PL ITEM 46 PRIMARY | Par Marine Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 0.25-20UNC-2AX1.375 CRES | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-656-1228 is a Screw,cap,socket Head, manufactured by Gulf Coast Holdings, Inc Dba Unidynamics, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-656-1228 has 8 manufacturer part numbers on file: 50104-11-SD4 (Naval Inventory Control Point Mechanicsburg), 50271000PL ITEM46 (Gulf Coast Holdings, Inc Dba Unidynamics), 50271000PL ITEM46D4 (Naval Inventory Control Point Mechanicsburg), 0.25-20UNC-2AX1.375D4 CRES (Naval Inventory Control Point Mechanicsburg), 0.25-20UNC-2AX1.375 CRES (J J Fasteners Inc Dba Jj Fasteners Inc) and 3 more.
Key specifications for 0.25-20UNC-2AX1.375 CRES: Criticality Code Justification: FEAT; Special Features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; Part Name Assigned by Controlling Agency: SCREW,CAP SKHD HEX. 1 specification is 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.