The Screw,close Tolerance, cataloged under National Stock Number 5305-01-078-2932, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-078-2932 |
| Primary Part Number | HT4025L5-10 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Fastener Length | 1.141 INCHES MINIMUM AND 1.171 INCHES MAXIMUM IN |
| Thread Length | 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-454 MANUFACTURERS STANDARD |
| Grip Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.625 INCHES MINIMUM AND 0.635 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 |
|---|---|
| HT4025L5-10 | Huck International, Inc (USA) |
| HT4025L5-10 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11905-5L10 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M454-5L10 | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| HT4025L5-10 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| HT4025L5-10 | Hi-Shear Corporation (USA) |
| ST3M454-5L10 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HT4025L5-10 | 5/2 Secondary reference U.S. Government activity |
| ST3M454-5L10 | 5/2 Secondary reference U.S. Government activity |
| HT4025L5-10 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 10114975 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT4025L5-10 | 5/9 Secondary reference U.S. Government activity |
| HT4025L5-10 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-078-2932 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-078-2932 has 7 manufacturer part numbers on file: HT4025L5-10 (Huck International, Inc), HT4025L5-10 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 11905-5L10 (Reid Products Inc. Dba Reid Products Inc), ST3M454-5L10 (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), HT4025L5-10 (Howmet Global Fastening Systems Inc) and 2 more.
Key specifications for HT4025L5-10: Fastener Length: 1.141 INCHES MINIMUM AND 1.171 INCHES MAXIMUM IN; Thread Length: 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN; Material Document and Classification: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.312 INCHES IN. 17 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.