The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-640-9598, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (CAGE 59958); The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (CAGE 1QZK3) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-640-9598 |
| Primary Part Number | ZH10078C8 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C |
| Status | ACTIVE |
| 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 |
|---|---|
| 1201DA-391ITEM25 | Cleveland Gear Company, Inc. Dba Cleveland Gear Co (USA) |
| ZH10078C8 PRIMARY | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
| Reference | Meaning |
|---|---|
| 1201DA-391 | D/9 Drawing number reference only Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
NSN 5305-01-640-9598 is a Screw,cap,socket Head, manufactured by The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-640-9598 has 2 manufacturer part numbers on file: 1201DA-391ITEM25 (Cleveland Gear Company, Inc. Dba Cleveland Gear Co), ZH10078C8 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-641-9498. Verify interchangeability with system specifications before substitution.
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.