The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-616-5544, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-616-5544 |
| Primary Part Number | TLM1578F3HX3 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc |
| Status | ACTIVE |
| Head Height | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| External Thread Tolerance Class | 2A A |
| Fastener Length | 0.554 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN |
| Handle Length | 0.197 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN |
| Thread Length | 0.352 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| TLM1578F3HX3 PRIMARY | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
NSN 5305-01-616-5544 is a Screw,cap,hexagon Head, manufactured by Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-616-5544 has 1 manufacturer part number on file: TLM1578F3HX3 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc).
Key specifications for TLM1578F3HX3: Head Height: 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; External Thread Tolerance Class: 2A A; Fastener Length: 0.554 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN; Handle Length: 0.197 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN. 13 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.