The Bolt,key Head, cataloged under National Stock Number 5306-01-296-0624, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-296-0624 |
| Primary Part Number | 4088T01G01 |
| Item Name | Bolt,key Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Head Height | 0.156 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Fastener Length | 0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Length | 0.586 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT KEYED |
| Thread Direction | RIGHT-HAND |
| Key Length | 0.104 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.595 INCHES MINIMUM AND 0.605 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 |
|---|---|
| 4088T01G01 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 4088T01 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 4088T01G01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-296-0624 is a Bolt,key Head, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-296-0624 has 2 manufacturer part numbers on file: 4088T01G01 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 4088T01 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 4088T01G01: Head Height: 0.156 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Fastener Length: 0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Thread Length: 0.586 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES IN. 12 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.