The Screw,close Tolerance, cataloged under National Stock Number 5305-01-129-7598, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is West Coast Aerospace, Inc.. Government technical data includes 17 specifications, 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through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-129-7598 |
| Primary Part Number | WC4025L7-14 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | West Coast Aerospace, Inc. |
| Status | ACTIVE |
| Fastener Length | 1.535 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.650 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.4365 INCHES MINIMUM AND 0.4370 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 | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.880 INCHES MINIMUM AND 0.890 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 |
|---|---|
| WC4025L7-14 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HT4025L7-14 | Hi-Shear Corporation (USA) |
| ST3M454-7L14 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HT4025L7-14 | Howmet Global Fastening Systems Inc (USA) |
| ST3M454-7L14 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4025L7-14 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 11905-7L14 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HT4025L7-14 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| HT4025L7-14 | 5/9 Secondary reference U.S. Government activity |
| HT4025L7-14 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BM19037-7-14 | 5/9 Secondary reference U.S. Government activity |
| HT295-7-14 | 5/9 Secondary reference Hi-Shear Corporation |
| BM19037-7-14 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HT8140-7-14 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| 106830-7-14 | 5/9 Secondary reference U.S. Government activity |
| HT4025L7-14 | 5/9 Secondary reference Sps Technologies Inc |
| 10115212 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| HT8140-7-14 | 5/9 Secondary reference U.S. Government activity |
| HT4025L7-14 | 5/9 Secondary reference U.S. Government activity |
| ST3M454-7L14 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4025L7-14 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-129-7598 is a Screw,close Tolerance, manufactured by West Coast Aerospace, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-129-7598 has 8 manufacturer part numbers on file: WC4025L7-14 (West Coast Aerospace, Inc.), HT4025L7-14 (Hi-Shear Corporation), ST3M454-7L14 (Fastener Innovation Technology, Inc. Dba F I T), HT4025L7-14 (Howmet Global Fastening Systems Inc), ST3M454-7L14 (Reid Products Inc. Dba Reid Products Inc) and 3 more.
Key specifications for WC4025L7-14: Fastener Length: 1.535 INCHES MINIMUM AND 1.565 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.650 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN; Material Document and Classification: AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.